Mvnforum works fine.
Really good program, simple and useful. I'm satisfied.
Great stuff. Thanks a lot.
A very good open source JSP forum that includes all the features you would expect from a modern forum (customization, BBCode, multi-language support, security...). I used it as a replacement of sourceforge.net forum for Sweet Home 3D project at http://www.sweethome3d.eu/support/forum/