problem with a script thats supposed to automatically import images into iPhoto

What im attempting to do is put an AppleScript on a folder so that
whenever I drop an image into that folder it loads up iPhoto and
imports it.

I used this similar example as my starting ground :
http://henrik.nyh.se/2006/12/automatically-import-and-tag-photo-booth-photos-into-iphoto

and came up with this
[code]
on adding folder items to this_folder after receiving added_items
	tell application "iPhoto"
		import from added_items
		delay 5 -- wait for import to finish
		tell (the first album whose name is "Last roll") to select photos
		assign keyword string "Eye-fi"
		select (the first album whose name is "Eye-fi")
	end tell
end adding folder items to
[/code]

Its working fine on my powerbook g4 , with iphoto 5.0.4

However, when tried on a mac book, with the latest version of iphoto
it starts to import then fails with an Unreadable Files
error...however there's no files listed.

Here's a link to a screenshot of the error message (the screenshot
also shows my script)
http://www.screencast.com/users/susanBuck/folders/Jing/media/f34a1d3a-aa65-4c63-92f6-8d98e22da285

Any Ideas?