ProtoForge version 1.2 was released today. The new version has many bug fixes, an improved look and feel with many new icons, RSS Feeds, and Improved server side services.
Downloaders of the released zip file should take note that the release files are exact copies of the SVN trunk directory. To get the latest version of ProtoForge you will want to check out the code directly from the sourceforge svn repository.
There are also some video tutorials on using ProtoForge over at protoforge.org. Happy prototyping!