hello i downloaded the Maveritchell's tutorial for this but don't work i decomposed the original image on RGB and then composed all the layers on RGBA but this don't work on the game could anyone help me please??

NOTE: i modifyed the .msh file how say in the tutorial

Wait, you wanna make a texture have an alpa channel? It' simple. Add a transparency layer and erase what you want to only be alpha channel. If you need help getting rid of one that's on top of a skin, go to colors>levels. Click on the pop-down bar thing. Click on alpha. Click and hold on the black arrow in the input line. Drag it all the way over to the other side. Don't click okay yet. If you want the skin to not be shiny, don't click on anything that'll close the window. Now do your skinning, click on the levels window, and drag the arrow back to the dark side. Sorry, bad joke . Now click okay and save. If you mean on a model, can't help ya there.

@Fluffy_the_ic: woow your tutorial work very thanks sir

Problem solved!!

Your welcome!