So I just upgraded Rat's Reading to the latest version of Simplr, the theme for it. It's the equivalent of Livejournal's styles.
Unfortunately, more than a one thing doesn't work the same way as it used to in the old version. So now I have a few hours worth of hacking to get it all ship shape.
I'll probably get a better schooling in PHP and Wordpress than I did last time I hacked Simplr up.