Hey man,

The topology from the Polys determines how the Sub-D layout looks. Go back to the Polygon geometry and check the layout and flow. You might find that there is geometry there that might not be needed. Once your tided up you may find the Sub-D geometry is a little neater. You are not going to get it exactly like the instructor has on the tute, unless you can duplicate the geometry and vertices to the exact X,Y & Z co-ords, it wont be.

Have fun and it looks ok to me.