how do u put ur skin on an existing w3 model?

like say if i edited paladins skin how do i put it on him?

convert it to a blp then import it like a regular skin.

To elaborate, convert it to BLP using either Image Extractor 2 or Warcraft 3 Viewer and then import it into your maping using the import manager. Change the path to match what you exported it from. In the Paladin's case, it would be Units\Human\HeroPaladin\HeroPaladin.blp .

If you're using someone else's skin, though, you don't know where it came from. Are there any ways to find that out? And where can I find WinMPQ to extract stuff in the first place?