Help reskinning monsters

[genmills]

Either I don't understand some of what you guys are saying, or it isn't applicable. I don't have to worry about changing the source files for the new monster. This is what I did:

I copied the brute monster and made another brute monster. There are two whole folders with the exact same stuff. Then I changed the folder name of mine, and the name of all the files inside it (except animations). Then I altered the .dds file and saved it over that new one. I used the material editor to change the new .mat file to use the altered .dds file. Then I change the .mat of the .ent file and it looks fine there. But when I press test model or w/e, or if I insert it in to the level editor, all the old colors come back...

MrBigzy:
You said you got it to work somehow? Could you explain how?

Sorry for being such a hassle, I just don't get what I'm doing wrong!!