Holy crap, there's no end to the pain of MT4.

After even more bloody knuckle slugging with MT4, it's finally at the point where the theme is showing up. But wait, there's all these random tags all over it. Oh my.

Thanks to Sarah from the Six Apart forums for pointing me in the direction I needed to go in order to begin the warfare that is my experience with upgrading to MT4. Her direction got the theme working - my next trick is going to be figuring out how the heck I'm gonna get rid of all this extra tag crap. Argh, it's so frustrating. If you're on the fence at all about upgrading, I would say skip it. The fancy new interface isn't worth this pain.