I just posted this on the Information board. You can visit the Perl Archive's website, link found in the post, and go to their forums. They were running UBB up until a couple of days ago.
Donate to UBBDev today to help aid in Operational, Server and Script Maintenance, and Development costs.
Please also see our parent organization VNC Web Services if you're in the need of a new UBB.threads Install or Upgrade, Site/Server Migrations, or Security and Coding Services.