"Extension Failure" URL Access Scripting

I am getting an error trying to do a simple upload using URL Access Scripting…
I’ve always used Fetch, but I saw a few sites that has scripts similar to this one, and it just won’t work for me…anyone know how come??

set this_item to "Macintosh HD:test:textfile"
set fullURL to "ftp://XXXXXX:XXXXX@ftp.server.com/testfolder/"
tell application "URL Access Scripting"
	upload alias this_item to fullURL replacing yes
end tell


Did you get a response to this yet? I have run into a similar problem. The only difference is that, for one ftp server that code works and for another I get the extension failure.

I’m all ears if you have any insight

i gave up on URL access scripting…it gave me too many headaches.
i bought Fetch 4.0.3 for $30 (or around that price)…i scripted that, and
it works just fine…

maybe someone else can help you with URL access scripting, but in my case
i considered it a lost cause (from other posts that i’ve seen, it seemed so simple
to implement)…