Over the past weekend I took the ubuntuforums.org site offline and upgraded the software to the latest Vbulletin 3.8 release candidate. Previously we had been running version 3.7.4p1 and felt the 3.8 serious was stable enough to move forward with even though its still a RC. The upgrade took about an hour and gave the forum community improved features to Social Groups, Private Messages, Profile Privacy, Albums and other misc fixes.
Thanks again to everyone helped test and find bugs after the upgrade.