yes. Everymodel uses a path so it can use a skin on it..blah..blah or something like that.
If you need to know the path of something, then use wc3viewer found in tool section of this sites resource database.
to find a path so your skin will apply to a certain model, just simply do a search for the model (the model u want your skin to be on) and then go up to your menu and keep looking for something called "show used texture names" or something and cnp the one that has the units name in it.
ps, sorry iv rushed this, i gtg school soon.