I don't have another XP CD, but I was able to fix my control panel by:
Going to: Start > Run, and typing gpedit.msc
Then clicking on the left hand pane, under User Configuration, then clicking on Control Panel, and setting it to Not Configured.
I've done another virus scan, and it looks like I'm totally in the clear now! Thank you so so much, evilfantasy! You're a life saver!