Since I'm drunk on a Sunday night, I've decided to upgrade the forum to the latest version of SMF. This appears to have horribly broken our beloved ApolloBB theme, so I'm switching to the default forum theme while we find a replacement.
Edit 11pm PST: Oh hey we have some lovely new choices for you in your thematic pleasure. "Flagrant_alt" is our new default, and 'Cleanliness' and 'DkTheme' are also quite nice. You can preview all the available themes in the Account Settings section of your Profile.