Newbie problem - invisible unit

[FakeTwin]

@ Ishan:
I finally got time to test the textures you posted: They worked!
Could you please tell me, step by step, what you changed?

[Ishan]

Great, celebration time.

Anyways it's nothing special i use this awesome converter(DXTbmp) one click and do anything, no dds crap etc.
Just convert .texture to .tga work on it and then convert back to .texture. Super cool and simple.

In your case i opened the file and saved it as Creative assembly format type that is .texture.