Looooong overdue, I have finally worked through a (6+ hour) dry run of upgrading the Comm Center to the current version of the forum software, vBulletin. It is very nice. Unfortunately the nice blue theme that we're all used to is not supported in V4, and the company (extremepixels) looks like they're gone. I've picked a few that you can see here (live demos)

http://www.completevb.com/demovb4/forum.php?styleid=22 (This is my favorite)
http://www.completevb.com/demovb4/forum.php?styleid=4
http://www.vbstyles.com/style.php?id=12
http://www.purevb.com/demo/forum.php?styleid=71
http://www.vbstyles.com/style.php?id=26

What do you think?

I plan to upgrade very soon, maybe today. This will cause the Comm Center to be offline for a day or so.