The service DVDs don't list removal or installation procedures for that panel, for 2001-2004 models, or for 2005-2007 models. The only mention of that panel is the diagram shown below, and instructions to disconnect the electrical connector for the powerpoint, if you have one.
But, I removed that panel when I added the European/Asian remote fuel door to my Escape a few years ago.
* Fold down the rear seat
* Remove the rear seat latch bezel
* Remove the cargo area cover, if you have one
* Open the liftgate and pull the weatherstrip away from the side panel
* Grasp the top of the panel, directly below the rear window, and pull it away from the window