Trying to make a file alias, but I'm stuck!

Question

I've come up with 3 ways to do the same thing, and none of them work..
I want a droplet where I can drop a file (this case, a photo) and then an alias is created in another specified folder on the desktop. I have a hundreds of photos to go thru and i want to have a shortcut to the ones that are approved, so I can go back later and photoshop them. I don't want to double up on the photos and I want to keep the structure they're in now, so I don't want to move them.
Where am I going wrong with any one of these...??
*Script 1*
on open draggeditems
tell application "Finder"
set draggeditem to theFile
make new alias of file in folder "Approved" of folder "Desktop" of folder "kit" of folder "Users" of startup disk to theFile
end tell
end open
Returns: The variable theFile is not defined.
*Script 2*
on open draggeditems
tell application "Finder"
set draggeditems to input
set alias of the input to make new alias file at folder "Approved" of folder "Desktop" of folder "kit" of folder "Users" of startup disk to input
end tell
end open
Returns: The variable input is not defined.
*Script 3*
on open draggeditems
tell application "Finder"
set sourcefiles to thisFile(draggeditems)
repeat with thisFile in sourcefiles
tell application "Finder" to reveal item thisFile
set thisFile to thisFile as alias
set alias of file in folder "Approved" of folder "Desktop" of folder "kit" of folder "Users" of startup disk to thisFile
end repeat
end tell
end open
Returns: Can't continue thisFile.
I realise there's a trend showing here, but I can't seem to break it..

Answer 1

The errors are fairly straightforward when you realize what's going on.
In scenario 1:
on open draggeditems
so 'draggeditems' is a list of the files that were passed to your script.
Two lines later you say:
set draggeditem to theFile
So now you're trying to set 'draggeditem' to 'theFile', but nowhere in your script is theFile defined. Hence the error.
I'm assuming you want to extract each file from the list of draggeditems, in which case you want something like:
<pre class=command>repeat with theFile in draggeditems</pre>
so now 'theFile' contains a reference to each file in turn. From there you can make an alias to it:
<pre class=command>make new alias to file theFile at folder "Approved" of (path to Desktop)</pre>
So, in all your script should look more like:
on open draggedItems
 repeat with theFile in draggedItems
  tell application "Finder"
   make new alias to file theFile at folder "Approved" of (path to Desktop)
  end tell
 end repeat
end open</pre>