Once you pop up the trim panel with the switches in it ( I used a large putty knife wrapped in a shop rag the first time, I have since gotten plastic interior tools ), There are release clips holdign the wiring harness on. Remove the wiring harness, and after this, if memory serves me correctly, the switch assy is held in with clips on the front and rear of the switch housing. Release the clips, and pull the switch assy through the back of the trim panel.
It has been some time since I was in the door of my old '01 SCrew, but this is sticking in the back of my mind for some reason. Someone might be along to correct me if needed.