[konidias]

I use Hypersnap DX for color swapping. It has the easiest color swapping tool by far. You get the little eyedropper tool and you can just select two colors with it and swap them, or you can pick from the color graph or whatever. Also, you can add as many color swapping tasks as you want and then do it all at once so it changes all the colors to whatever you were wanting them to.

Very handy and a lot better than colorize in photoshop.