Ok, I went ahead and took some pics in the process...
My exterior moulding broke a few months ago due to road debris, and the inner moulding took some damage, so I bough the new parts finally to replace them.
SInce I had no exterior moulding, I started by removing the inner moulding...
no big deal...
The new inner moulding with the 7 plastic tabs, and the old one. Notice there is an 8th tab (not shown) that clips on the marked hole. This tab comes attached to the exterior moulding.
The new inner moulding in place...
The new exterior moulding in place, just apply some pressure, so the tabs can clip into the holes.
NOTE: Be careful if you need to remove the exterior moulding, since the tabs can easily break. Start from the top, and work your way down...