Want to tweak an apps script, but it gives error when try to save - help!

Question

so I have a neat app that when used, will send an image it takes to your email address of choice. It uses "Mail" as the default mail app, but I only use Entourage as my mail app.
Opening the package contents of the app, I found the Applescript that controls this function.. see it below
on sendemail(emailto) --
-- set email_to to "[email protected]" --
-- set email_from to "[email protected]" --
set image_name to "Snapshot.jpg"
set image_path to ((path to home folder) as string) & image_name
set image_file to image_path as alias
tell application "Mail"
activate
set new_message to make new outgoing message with properties {subject:"Here is Your Snapshot"}
tell new_message
-- set visible to true --
-- set sender to email_from --
make new to recipient at end of to recipients with properties {address:email_to}
make new attachment with properties {file name:image_file} at after the last paragraph
-- activate --
end tell
send new_message
end tell
tell application "Finder"
-- delete image_path --
end tell
end send_email
it seems easy enough tweak to me.. see bold text above, but just change the line _tell application "Mail"_ to _tell application "Microsoft Entourage"_ and save the Applescript and viola.. BUT it does not work as once I make that weak & try to save the Applescript I get this error "*Syntax Error Expected “:”, etc. but found property*" and highlights just the word name which is followed by an existing ":". If I change it back to "Mail" it saves just fine... what gives?

Answer 1

I took a different tact that is getting me closer, the Entourage dictionary helped...
set thesubject to "here is your proof!"
set theBody to "here is your visual proof."
set theAttachment_name to "Default.jpg"
set theAttachment_path to ((path to home folder) as string) & theAttachment_name
set theAttachment_file to theAttachment_path as alias
tell application "Microsoft Entourage"
set theRecipients to {{address:{display name:"Contact 1", address:"[email protected]"}, recipient type:to recipient}, {address:{display name:"Contact 2", address:"[email protected]"}, recipient type:cc recipient}}
set theMessage to make new outgoing message with properties {recipient:theRecipients, subject:thesubject, content:theBody, attachment:theAttachment_file}
open theMessage
end tell
tell application "Microsoft Entourage"
send theMessage
end tell
now.. I have the email composed, the attachment is found in proper 'home' folder and correctly placed/attached, subject line set, contact addresses set.. BUT my final issue seems to be just getting the email to send. it creates and composes the email, but is waiting for it to manually be sent as it seems my final "tell" is not sending the email automatically like it should. I have used the Entourage script dictionary, but I am failing to see how to get the script syntax that finishes it off by sending the email automatically.
tell application "Microsoft Entourage"
send theMessage
end tell
this above tell is not working... any ideas?