Thanks Adam,
I completely deleted the old version.
Unfortunately I see the same "CuteWebUI_AjaxUploader_Initialize is not defined" error in Firebug.
I saw someone else post a similar report recently and they mentioned it may be a hosting problem. I tried the demo on another server and it worked fine.
I've also tested in IE8. It throws the following error...
"
In Safari4.0.5 in the 'Activity' window I see...
"
"
*** Actually - come to think of it those last paths from Safari don't look right at all! Could that be the root of the problem?