The last I heard Ford (in Canada) was no longer installing them for free, but would provide the hardware for free. This means that Ford Canada would no longer be reimbursing the dealers for the install, but I'd still call around to all of the Ford dealers in your area, because some may still do it for free as a service to their customers.
You may want to read this thread too -
http://www.car-seat.org/showthread.php?t=126866
From the LATCH manual, for a 97 Ford Escort
4-Door Sedan:
- There are 3 x 5/16" weld nuts in the rear filler panel.
- The kit is called a "Tether Strap Anchor Kit" - all-in-one 5/16" bolt and spacers
- Part # F7CZ 54613D74-AD
- Notes - Fold down the rear seat and look on the bottom of the rear filler panel just behind the seat to locate the weld nuts.
If she has a Wagon, I can post that info too...