Skin changes in Texture packs.

I have this texture pack I'm kinda fond of (Resident Evil x64), but the pack uses the boring old default skin.

Is there a way I can change the skin to something a little more fitting to the pack itself?

I know how to change skins, but I don't know how to do it in the texture pack itself.

I'm running a bootleg copy, if this makes any difference.

EDIT:NEVERMIND I FOUND IT.Apparently, I had to replace the char.png file in the mob folder. In case anyone was wondering how to do it themselves.

I'm the Merchant from RE4 now. Until someone gets off their ass and makes a decent Wesker skin, the bastards.