Sliding door open/closed contacts are in the row of spring contacts on the door that contact the pillar contacts.
The front driver/passenger doors are a bit more difficult.......here are links to 2 pictures from inside the door on my '96 windstar.
Passenger side with track for window glass out (that's another repair you may have) and window up.
https://www.flickr.com/photos/415748...7632198092975/
Driver side with window glass track in place.....
https://www.flickr.com/photos/415748...7632198092975/
Interior trim panel removed in both pictures.