You also have to make sure that you have the specific textures for your enemy characters. I don't know them off the top of my head but I think it's _D2 _D _N _I
N is the normal map, you have to make that. I use adobe photoshop 32bit with normal map maker from Nvidia. I requested bootlicker to make a shader thread awhile ago explaining how to put shaders onto things. Look for shader tutorials from bootlicker. He explains it all in an easy fasion.
Then in the editor and in the character .FPE you must assign a shader. The shader has to be for characters however.
If this all fails, you can try adding a dynamic light. This is sometimes known to help get rid of the black on characters.