What is pathway for iDisk?

I am new to this and trying to create a script that will, each day, download a file from my iDisk to my desktop. The following script generates an Applescript error message saying that it can’t find the file “boxoflight:movethis”

[tell application “Finder”
move file “boxoflight:movethis” to “Macintosh HD:Users:BOLT:desktop”
end tell]

Strangely enough, I can upload the file to the iDisk by asking it to move the file from my desktop to “boxoflight”. The following script works just fine:

[tell application “Finder”
move file “Macintosh HD:Users:BOLT:desktop:movethis” to “boxoflight”
end tell]

Why would the pathway work when uploading but not downloading?

Thank you for your help.

Model: iBook G4
AppleScript: 1.10.7
Browser: Safari 419.3
Operating System: Mac OS X (10.4)

I don’t have an iDisk, but assuming your iDisk is mounted, why not use the full path to it?