Sorry about this folks!
Apparently what happened is we recently changed our stats over to getting analyzed on a number of machines instead of just one. The processing required was too much for just one machine, and was taking forever to complete.
So that's great in theory! In practice, none of the new machines were actually analyzing the stats since Wednesday!! We've fixed the problem now (it was nfs related), and are working on analyzing the missing stats. We still have the raw logs, but need to get them analyzed. It'll take a while to completely run on all domains too.
Anyway, we also aren't very happy with our current stats system. We're currently researching ways to improve it, in reliability, interface, and customizability. If your stats are of the utmost importance to you, at this point I would honestly recommend that you download daily the raw log files we offer you and find a stats analysis program you like and do it that way, at least until we can revamp our system!