Hmm, yes. I have gone through my download's folder and all I've got is skins, and hairs, and a few eyes. But, I headed over to Simbology and I think it may be a feature of one of the flavourpacks messing everything up. I'm off to check now that I've removed it and see if it works.
If you have a Flavor Pack that's "messing everything up", then you must have Inteen also. That's not what's causing your problem though. Do you have any other mods? Yes, mods are considered custom content, just as skins, hairs, eyes, and clothing are.
Back up and do as Joy suggests. In case you aren't familiar with HCDU, it's the Hack Conflict Detection Utility and available on
www.simwardrobe.com under TS2 Programs.