http://osflash.org/ajaxanimator
Major Changes :
Added History Panel for tracking and reverting to other revisions, unlimited undo history)
Undo Button now works
Disabled compression when generating animation (now the data sent from client to server when compiling an animation requires around twice the bandwidth, this is due to some problems with saving/opening files)
Login System (user management)
File Browser (user management)
Save to server (user management)