Upgrading to the latest version of Movable Type. Expect breakage.

UPDATE: We seem to be back up. Someone post a comment, and let's see if it works.

UPDATE: Comments are broken, but I can post. Thanks to those who tested comments. I tried to reconfigure comments and rebuild the site, but rebuilding consistently causes a Bluehost CPU overage, which is why I'll be looking for a new hosting provider as soon as I can. I can't find a way to rebuild a few entries at a time to avoid getting dinged.on CPU.