alpha

Im having a problem saving the alpha channels into my texture.
texturew works fine in the wc3 viewer but when I run in we, only teamcolor shows up, the rest is invisible.

that is because you've painted the alpha channel black eg. erases the part of the model which isn't team color and colors the part wwhich is team color.
how to fix: open up the base skin (eg. if your skin was illidan open up illidan not thrall)
copy the whole alpha channel of the base skin and paste it unto your skin eg. the one you made.
and it should be fixed

hope it helps you