oh, but this has nothing to do with uv's. It's the geometry, your faces are flipped (aka the normal of the face, points in the wrong direction) In the edit poly, select the faces and hit "flip" button or add a modfier "Normal" and check flip normals.
There is a great little script that helps unify the normals and flip faces. This saves you from having to run around the mesh and flip each face and you never really know if you got them all when you do them one at a time, this takes care of it and points them all in one direction.…