that's some nice work there, especially for ur first organic model!

normal maps are applied as a seperate skin -- do not use them in the "colour" texture. a normal map shader will calculate extra smooth and realistic lighting based on the normal map, so it must be seperate. i believe it has to use the same UV's as the colour map, but i only have extra edition, so i cannot use shaders and haven't looked into this. i'm sure someone else will be able to help you out more. if you dont get any more helpful responses, ask about a normal map shader in the shader forum.

julz