I just put a Hitch on my FEH. I ordered the Ford Hitch that fits the 2005 Escape (non-hybrid). I checked with people at Ford to make sure it would fit first. Anyway, it came in last week and I installed it this weekend. It took only about 20 min to install the Hitch and every thing went exactly as the instructions sheet indicated.
The FEH, I found out, does not have the wireing harness for the Ford light kit. After talking to several people I was told that I needed a light processor that could power the tailer lights from the 12V batt and not just splice into the power feed to the tail lights. The light processor uses the tail/brake/turn light voltage just as a signal for the processor and does not draw any power to drive the trailer lights from these lines. I got a Hoppy light processor ($35) but have not fully installed it yet. I've run the 12v line to the battery, and since thats the hardest part I should be able to finish up tonight.