So I went ahead and upgraded WordPress to the [at present] most-recent version of 2.6.3. It actually went pretty painlessly and I'm excited that there's a new widget for tag clouds (I had been running 2.3.1 that I installed almost exactly a year ago). If you're on the main JayceLand page, then you'll have to go to the blog home page to see them. Even the plugins still work, and the theme I tweaked seems to function okay too (although I'm now using the built-in sidebar instead of a custom one).