One more thing to try, go back to MyDocuments/EAGames/TheSims2 and try moving your SavedSims folder to your desktop and try Bodyshop again. Don't forget to put it back after though. :doh: If that doesn't work, I'm stumped, short of doing a reinstall.
For SimPe, here's a link to get you started if you take that route:
http://simpeforum.ambertation.de/Edit: Make sure you're using the Bodyshop version from the newest expansion pack released that you have installed.