Am I doing something wrong or can Morrowind's body parts not render vertex shading properly?

I can bake an ao map for http://i489.photobucket.com/albums/rr256/ericthered1090/Random%20Stuff/helmetvertexshading.jpg. But I made a few edits to the uv to make it use default textures which makes that slightly more inconvenient than using vertex shading.

Plus I'm just wondering now

Thanks