How do I use two different skins with the same model?

I want to have both an original sorceress and a re-skinned one. Can I do this without making a new sorceress model and how? I have the new skin, but don't know how to tell the game to use the new skin with the old model.

http://www.omgasl.com/wcwarehouse/tu...e=multipleskin


go there thats how i learned

thanks much