Yeah, the numbers only provide info on when an entry was added. It's useful historically, and because people have in the past referred to FAQ entries by their numbers, but somewhat counter productive when it comes to grouping information. I figured people were better off with just titles so they wouldn't assume any ordering. (edit: Plus, you don't have a whole pile of pages that start with "4..." in the dashboard change listing...)
I'd love to see someone organize the FAQ into better sub-categories. We've just had the wiki software upgraded, so there may be better tools for this now.