Here is a shot of the surface that goes into the window rubber (groove). You need a different windshield gasket designed for this trim, the vendors including Steele Rubber all carry it.
https://www.flickr.com/photos/advance-design_parts_co/9128808273/in/set-72157631868452754
On the door trim you replace the painted with the stainless. It can be a bit of an exercise to replace. On the outside piece you need to bend/force it into place and it can bend in the wrong place if you are not careful. The inner one is easier I just leave all the screws loose as I go around starting them. I used originals so I am unsure how the reproductions fit?