[OSX-Users] any applescript experts there?

[Leslie Carr]

I am trying to create a script to run from the commandline (via  
osascript) that uses the Image Events app to scale down an image.

on run argv
         tell application "Image Events"
                 launch
                 set this_image to open item 1 of argv
                 set sf to item 2 of argv
                 scale this_image by factor sf
                 save this_image
                 close this_image
         end tell
end run


Each time I try and run it, it says that the variable this_image is  
undefined. Which it clearly isn't!
The frustrating thing is that it worked for about an hour yesterday,  
and then stopped working. I can't find out what changed, and without  
resorting to fixed file aliases in the code I can't get it to work  
again now.

Can anyone offer any insight?
--
Les