I\'m using the Sortable component of jQuery UI. The callbacks don\'t seem to work at all, even with this minimalistic test:
It seems that the .sortable() is having some technical difficulties according to this post. You may need to use SVN to download the latest trunk release to fix it.
I was able to work around this problem by including two versions of jquery simultaneously. Check it out here: http://gist.github.com/59757
Hope it helps!