They are ordered numerically, which makes the list pointless. The best way to use it is to go to the forum you want to search, and search from there.

Someday, a million years from now, I'll find 100 free hours and convert the board over to vBulletin. I was going to do it a few months ago, but it didn't convert correctly. Now that they have fixed it, I'm at work, and don't have free time to do it.