How do you make a texture transparent?

[Aki K]

Working on an outfit conversion and I'm trying to make a part of it transparent. I tried opening the texture and selecting "color to alpha" but its not working. The texture actually looks darker and uneven, but is not at all transparent. I think it only makes it transparent in that program and not transparent in the game.

 

Using GIMP to edit the textures. Its worked for me in the past but I'm beginning to think it can't do transparency properly.

[MadMansGun]

you need to add a NiAlphaProperty to the mesh in nifscope.