Problem with teksture edditing

[Veldrin]

I have one little problem with teksture edditing. I like to etc. change armor color with PhotoShop. Ussing KT I extract some armor TGA and open it with PS. The teksture color is violet! Why?
How can I change the teksture colot now. :(

Little tutorial please!!:)

[PrtyLizardJedi]

I have a tutorial on retexturing. PIcs are from Photoshop 6.0, and it is at my site www.freewebs.com/myzips on the front page