Well, I saved the registry info just in case something horrible happened, so I have since merged it back in, restarted, and fixed that problem, but my filthy registry remained. What I have done to remedy the problem is simply uncheck "Fonts" on the registry clean tool when cleaning it. Cleaning my fonts, for some reason, meant deleting all of them and leaving nothing but Wingdings.
I'm running Windows XP Professional and using CCleaner v1.30.310. I don't have a screenshot and I'd prefer not to repeat it, but if you have anymore advice I'd be glad to hear it. Beyond that, if it happens again in the near future, I'll get you your screenshot (I was surprised to see the word START on the button in the corner was actually part of the fonts, I figured it was just a picture of the text...but nope)