Taking a cue from KoTOR II, I decided to replace some of the NPC heads with some of the PC faces I don't use. My early tests were positive, I managed to change the Taris janitor's face, as well as Trask's, but then when I tried to play around with the fighting Sith and Jedi on the Endar Spire I began to run into a problem. Namely, they can't seem to keep their clothes on, no matter what I try to do.
Now, when I changed the janitor, I changed his class to soldier and Trask is already one. Am I running into difficulty because there's a problem with changing the appearences on classes with a Jedi class, and if so how can I get around it?
If you're editing the .utcs for the new heads, make sure the Jedi have Jedi Defense as a feat or else they can't wear their Jedi robes and will show up in their undies.
That might not be the problem, but it'd be a good first place to look (I've had problems with Jedi class characters strip when I forgot Jedi Defense >_<)