Just picked up my Edge after the dealer supposedly performed the TSB fix. The squeak is still there, no change. The manager said he is going to follow up with Ford and get back to me. Probably the start of the run-around.
I obtained a copy of the TSB and it states:
" Some 2010 Edge and MKX vehicles built from 1/25/2010 to 6/28/2010 may exhibit a squeak noise from the driver and/or passenger front seat while braking, accelerating or turning corners with the seat belt buckled. This noise may be due to contact between the inboard safety belt buckle anti-rotation locator tab and the seat track bracket slot. Concern can occur on all front seat types except 4-way manual driver seat."
I have disabled the driver's seatbelt ding-dong and gone for a long drive without the seatbelt done up. It did not squeak once. As soon as I buckled up the squeaking started again. I guess I will take this info to the dealer and go from there.