widdles

Trying to make a new design for a group window, just playing around learning the basics of the xml setup for now. I started a new 256x256 transparent file in photoshop.. did what I wanted to do with the background, and saved it as a .tga, 32bit, non-compressed, etc. It is filling up everything that was left transparent in the image with plain white... so when I go ingame, around curves it fills it in with the white to make it a normal rectangle.

Any ideas?