Hey its me...
Well in jka you get skins which are used in single player, where you select the hair colour , the species [human male, human female etc] and that, i would like to know how to change these skins so that you can have them viewable on the skin/ model selecter in the game and how to edit them.
Please help me. Its difficult to explain!
I suggest expirementing. Unzip assets1.pk3 (if you havnt already) and look around in the players folder. I figured it out, you can too! Sorry I cant be of further service (you cant really explain the proccess, as it involves code and such, but its easy too look at).