Go Ahead - TRY and Upgrade
Well, as you can pretty obviously see, I've completely horked by blog template. This is all because I upgraded to MT Version 3.15. Actually, the upgrade was pretty straightforward and really not that big a hassle... except I wanted the more slick stylesheet that comes with it, and well... this is the bloody ugly result. I'll get to it. Hopefully.
Advice to those who see weirdness in their movabletype interface when they first load it: Clear Cache. Fixed my problems. The upgrade works, but you've got to deal with all your old templates and such.
Update: Ok, I put my old stylesheet back. I'm mostly understood how it worked, and this new one I have no clue... so I'll deal with this later.