Error 10810 when running applescript remotely

Question

So "final" product here. I'm no applescripter so my code is probably inefficient. As such I keep running into a -10810 error and from my googling and research I think it's a runaway process (or a few of them) created by this script. I run it through Casper remote. It's a compiled script for compatibility with Casper Remote. Running as a standalone app (or as a compiled script on the local desktop) it works just fine. It's only through Casper Remote that I get this error and only sometimes. The script works even when no one is logged in. Casper Remote runs as an admin and forces sudo when it needs to.
Any ideas as to what might be causing the failure? The script fails very quickly when it does. It certainly does not get to the point where it gathers all apps on the computer.
TIA!
Andrew
(*This script should be run first on a computer to be upgraded.    
It collects the size of the users's homefolder and any folders 
common to all users (Workfolder, PAGEFOLDER, etc).  Common units get
all users transfered. It also collects apps installed in /Applications. It is to
be run again on the new computer to verify that all data and apps were     
copied over correctly. It outputs the data to a log at                       
/netappv2/MacPackaging/FY12MacDAC-UserMigration titled with the
User's username, old mac name          *)
on run argv
  -- Define static variables --
  ---- "\n"
  -- Capture the user's name (passed from Casper Remote)
          set userName to item 4 of argv
  -- if a username was not passed to the script, quit immediately
          if userName = "" then
                         do shell script "echo No username specified! Try again with a valid username"
                         error number -128
          else if userName is in {"Common", "common", "COMMON"} then
                         do shell script "echo **********THIS IS A COMMON UNIT. ALL USERS WILL BE TRANSFERED! **********"
          end if
  -- Capture computer name and current date
          set computerName to computer name of (system info)
          set currentDate to current date
  -- Define file access --
  -- We first have to create a file so we can reference it via Applescript for writing. We do this via the shell
          set shellLogFile to computerName & "-" & userName & ".txt"
          do shell script ("mkfile 10k /private/var/root/Desktop/" & shellLogFile)
  -- Make a directory on the server particular to this user and computer since two reports will be made: one for the old computer and one for the new
          set logFolder to computerName & "-" & userName
          do shell script "mkdir -p -m 777 /Volumes/MacPackaging/FY12MacDAC-UserMigration/" & logFolder
  -- Open a text file for writing the DAC data collection information. Alias it to the file we just created
  -- the file is located on roots desktop, but it is aliased to the current user's desktop (if one is logged in)
          set logFile to (((path to desktop) as string) & computerName & "-" & userName & ".txt") as alias
  open for access logFile with write permission
  set eof of logFile to 0
  -- Write log headers   --
  -- Write relevant user and computer information to the log file
          if userName is equal to "common" then
                         write "**********THIS IS A COMMON UNIT. ALL USERS WILL BE TRANSFERED! **********
" to logFile
       write "
" to logFile
          end if
          write "Report run date: " & currentDate & "
" to logFile
          write "User to be migrated: " & userName & "
" to logFile
          write "Computer to be migrated: " & computerName & "
" to logFile
          write "=========================" & "
" to logFile
  write "
" to logFile
  -- Begin data collection output      --
  -- First check for the existence of partition "work"
          write "Folders on Work partition to be transfered" & "
" to logFile
          write "========================================" & "
" to logFile
          set workPath to "Work" --we are only looking for partition "Work"
          tell application "System Events"
                    if workPath is in (get the name of every disk) then -- list all partitions and check for "Work." If found, set folderList to the contents of Work
                                   set folderList to list folder workPath without invisibles
                    else
                                   set workPath to (get the name of every disk) -- if "Work" is not found, list the mounted partitions and exit
                                   write "No Work partition! Available partitions are: " & workPath & ". Exiting." & "
" to logFile
                                   do shell script "echo No Work partition!"
                                   do shell script "echo Available partitions are: " & workPath
       close access logFile
                                   error -128
                    end if
          end tell
  -- Next write the root level contents of the Work partition and their sizes. These main folders and their entire contents (except Users) will be transferred. For user folders, only the /Users/username and Users/Shared folder will be transferred
          set totalSize to 0 --set a count for the size of each folder found. This will be the total size of all data to be migrated
          repeat with aFolder in folderList
                         if aFolder contains "Users" then
                                        set userFolder to "/" & aFolder & "/" & userName -- rename the folder to the explicit path to the users home folder (name provided when the script was run), since we aren't interested in any other user folder
                                        set sharedFolder to "/" & aFolder & "/Shared" -- create another variable to hold the Shared folder since we need to copy this as well
                                        set UNIXFolder to quoted form of POSIX path of userFolder
                                        set folderSize to (do shell script "du -k /Volumes/Work" & UNIXFolder & " | tail -rn1 | awk '{print \"\" $1}'") as integer -- extract the size of the users home folder
                                        set totalSize to totalSize + folderSize
            write userName & " home folder - " & CalcFolderSize(folderSize) & " " & KBMBGB(folderSize) & "
" to logFile
                                        set UNIXFolder to quoted form of POSIX path of sharedFolder
                                        set folderSize to (do shell script "du -k /Volumes/Work" & UNIXFolder & " | tail -rn1 | awk '{print \"\" $1}'") as integer -- extract the size of the Users/Shared folder using the same method as above
                                        set totalSize to totalSize + folderSize
                                        write "Users/Shared - " & CalcFolderSize(folderSize) & " " & KBMBGB(folderSize) & "
" to logFile
                         else if aFolder does not contain "Users" then
                                        set UNIXFolder to quoted form of POSIX path of aFolder
                                        set folderSize to (do shell script "du -k /Volumes/Work" & UNIXFolder & " | tail -rn1 | awk '{print \"\" $1}'") as integer -- extract the size of aFolder if other than "Users"
                                        set totalSize to totalSize + folderSize
            write aFolder & " - " & CalcFolderSize(folderSize) & " " & KBMBGB(folderSize) & "
" to logFile
                         end if
          end repeat
          write "____________________" & "
" to logFile
          write "Total copy size: " & CalcFolderSize(totalSize) & " " & KBMBGB(totalSize) & "
" to logFile
  write "
" to logFile
  -- Record all departmental apps that need to be installed on the new mac
          write "Departmental apps to install on the new mac" & "
" to logFile
          write "===========================================" & "
" to logFile
  -- A pre-defined list of departmental apps. These apps are not included in the AG Core image and need to be installed on the new mac. All relevant transferrable apps are in the Applications and Utilities folders. Apps installed elsewhere are not AG standard and do not get transferred
          set theApps to {"Adobe Acrobat 7.0 Professional.app", "Adobe After Effects CS4.app", "Adobe After Effects CS3.app", "Adobe Fireworks CS3.app", "Adobe Flash CS4.app", "Adobe Flash CS3.app", "ColorEyes Display Pro.app", "ColorThink 2.2.1b2", "Corel Painter X.app", "DiskTracker 2.3.2", "DiskTracker.app", "Dreamweaver.app", "EPSON Scan.app", "Fetch.app", "formZ RenderZone Plus.app", "Google Earth Pro.app", "Google Earth.app", "iMovie.app", "Keyspan Serial Assistant.app", "Flash 8.app", "Microsoft Excel.app", "Microsoft Excel", "Microsoft Word.app", "Microsoft Word", "Microsoft PowerPoint.app", "Microsoft PowerPoint", "PhotoZoom Pro 2.app", "Product Ingest.app", "Product Tag.app", "Art Ingest.app", "ProfileMaker", "TextWrangler.app", "Toast Titanium.app", "ToolCrib.app", "Winclone.app", "Suitcase Fusion 2.app", "Suitcase Fusion 3.app", "BRASS.app", "Final Cut Pro.app", "Pro Tools LE.app", "LightWave", "VMware Fusion.app"}
          set appsPath to (path to applications folder)
          tell application "Finder"
                         set appList to name of every application file of entire contents of folder appsPath
          end tell
          repeat with anApp in theApps
                         if appList contains anApp then
                                        set anAppID to id of (application anApp)
                                        if anAppID is not equal to "????" then
                                                  tell application "Finder" to tell (application file id anAppID)
                                                                 set vers to version of application file id anAppID
                                                                 set parentFolder to name of its container
                                                  end tell
                                             if parentFolder is in {"Applications", "Utilities"} then
                                                       set parentFolder to ""
                                             end if
                                                  write anApp & "
" & "Version: " & vers & "
" & parentFolder & "
" to logFile
                                                  write "--------------------------------------" & "
" to logFile
                                                  write "
" to logFile
                                        else if anAppID is equal to "????" then
                                                  write anApp & "
" to logFile
                                                  write "--------------------------------------" & "
" to logFile
                                                  write "
" to logFile
                                        end if
                         end if
          end repeat
  write "
" to logFile
  -- Collect all the printers that need to be installed on the new Mac
          write "Printers to install on the new mac" & "
" to logFile
          write "===================================" & "
" to logFile
  (*tell application "Printer Setup Utility"
                    set printerList to the name of every printer as list
          end tell
          repeat with aPrinter in printerList
                    write aPrinter & "
" to logFile
          end repeat*)
          set printerList to do shell script "lpstat -a | awk '{print $1}'" as text
  write printerList & "
" to logFile
  close access logFile
  -- edit file permissions so everyone can read it
          do shell script "chmod 755 /private/var/root/Desktop/" & shellLogFile
  -- copy the file to macpackaging for later use
          do shell script "ditto /private/var/root/Desktop/" & shellLogFile & " /Volumes/Macpackaging/FY12MacDAC-UserMigration/" & logFolder
end run
-- subroutine for converting folderSize
on CalcFolderSize(KBParam)
          if KBParam ≥ 1048576 then -- convert to GB
                    return (KBParam / 1024 / 1024)
          else if KBParam ≥ 1024 then -- convert to MB
                    return (KBParam / 1024)
          else
                    return (KBParam)
          end if
end CalcFolderSize
-- subroutine for determing KB, MB, or GB
on KBMBGB(paramSize)
          if paramSize ≥ 1048576 then -- 1GB
                    return ("GB")
          else if paramSize ≥ 1024 then -- 1MB
                    return ("MB")
          else
                    return ("KB")
          end if
end KBMBGB

Answer 1

So AS can't get the physical size of the folder it finds. I think I know the reason though. The script lists the contents of the Work volume in this snippet:
set workPath to "Work" --we are only looking for partition "Work"
          tell application "System Events"
                    if workPath is in (get the name of every disk) then -- list all partitions and check for "Work." If found, set folderList to the contents of Work
                              set folderList to list folder workPath without invisibles
else if
... stuff ...
end if
end tell
Then later I have it doing this:
else if aFolder does not contain "Users" then
                              tell application "System Events"
                                             set folderSize to (physical size of aFolder) div 1024
                              end tell
                              set totalSize to totalSize + folderSize
  write aFolder & " - " & CalcFolderSize(folderSize) & " " & KBMBGB(folderSize) & "
and I get the following from the AS editor events pane:
tell current application
  system info
  --> {AppleScript version:"2.1.2", AppleScript Studio version:"1.5.1", system version:"10.6.7", short user name:"acaldwell", long user name:"AC Andrew Caldwell (8318)", user ID:1.092545022E+9, user locale:"en_US", home directory:alias "Work:Users:acaldwell:", boot volume:"AG2025", computer name:"AG2025", host name:"ag2025.amgreetings.com", IPv4 address:"10.104.20.113", primary Ethernet address:"00:17:f2:07:ec:dc", CPU type:"Intel 80486", CPU speed:2660, physical memory:4096}
  current date
  --> date "Wednesday, June 8, 2011 4:24:49 PM"
  path to desktop as string
  --> "Work:Users:acaldwell:Desktop:"
  open for access "Work:Users:acaldwell:Desktop:AG2025-acaldwell.txt" with write permission
  --> 47
  set eof 47 to 0
  write "Report run date: Wednesday, June 8, 2011 4:24:49 PM
User to be migrated: acaldwell
Computer to be migrated: AG2025
=========================
" to 47
  write "Folders on Work partition to be transfered
========================================
" to 47
end tell
tell application "System Events"
  get name of every disk
  --> {"AG2025", "Work", "home", "net", "Public", "MacPackaging"}
  list folder "Work" without invisibles
  --> error number -10004
end tell
tell current application
  list folder "Work" without invisibles
  --> {"Page4 Folder", "PAGE4BUILDER", "Users", "zz_LastFolder"}
Result:
error "Can’t get physical size of \"Page4 Folder\"." number -1728 from «class phys» of "Page4 Folder"
Now I tested the tell system event portion in another editor with this code
set aFolder to path to home folder
tell application "System Events"
          set folderSize to (physical size of aFolder) div 1024
end tell
and got the right result. So I think that I can't get the size because it is not showing the path to each of these items, just the name of them. Is there a way to set a variable to the path to each of the items it finds? I think then it'll get the sizes right....
Thanks!
Andrew