I decided that it was time to upgrade wordpress and all my plugins to their latest versions. Everything went smoothly except for the WPG2 plugin and the gallery. Some sort of interaction between the two is broken and it could take a while to fix. Until then, I guess you’ll just have to enjoy the only working function: The random image on the sidebar =)

As far as I can tell, everything else on the site is working nominally.

Update: I fixed it. I trashed all the rewrite rules in the .htaccess file and told the WPG2 plugin to re-generate them.