OFP is a little difficult when it comes to tga's
I can make them in Photoshop without problem in either 24 bit or 32 bit
But I have never been aboe to make a tga in PSP that Oxygen (or texView) can load. This is not unique to me many other people have the same problem.
.pac are 24 bit and .paa can be either 24 bit or 32bit
I use all 24 bit = .pac and 32 bit are .paa
It helps me know which textures are which
You can get transparency with 24 bit textures though as RBG(255,0,255) is transparent. You cannot get any graduated transparency like dirty windows though.
White texture is more likely to be a pathing problem. Its what the engine shows when it cannot find the texture your path points to.
Press ALT + T and you will see a list of tetxures with a path
assuming you have O2 set up correctly it should be
yourproject\texture.paa
yourproject folder should be in the same place as the buldozer.exe - and if you followed the readme in the root
c:yourProject\youraddon.p3d
c:yourProject\yourTexture.paa
c:buldozer.exe