I have a set of Weathertech Floorliners in my Durango and love them. Although the website does not list them for the 2007 Expedition I was wondering the same as far as a difference between the 06 to 07 floorplan.

http://www.weathertech.com/store/vehsearch.asp?make_id=17&year_no=2006&veh_id=223&i tem_group_id=52&veh_opt_choice_id=0