We'll be taking the forums down for an upgrade at 8PM Central time tonight. If all goes well, we should be back up in an hour or less, I believe, with a fresh new version of phpBB. If all goes poorly, the server will be in flames and we won't be back up for days on end! So there.
Well, the upgrade is complete, and things seem to be working properly. If you see anything strange or broken, please post here and let us know. Thanks!