[jQuery] UI - Uploader

[Vincent Majer]

Hi,
I found a discussion about this site and demos :
http://uploader.webunity.nl/jQuery/demo3/
http://docs.jquery.com/UI/Uploader

I really like it.. But i can't find any docs on the php file behind the 
scene.. Neither a link to download this plugin.. If this is a plugin.. ? 
or a part of jquery UI ? But i didn't see any mention of it, on the 
jquery UI site..

Anybody has informations about .. ?

thanks