I just earched the zetec maintenance forum and found this post, with good pictures:

http://www.contour.org/ubbthreads/showflat.php?Cat=&Board=zetecmaint&Number=739483&Forum=zetecmaint&Words=timing%20belt&Match=Entire%20Phrase&Searchpage=2&Limit=25&Old=3months&Main=739483&Search=true#Post739483

I've heard it's a very doable job if you are mechanicly inclined, but never done one myself as I have the V6 engine.

97 Contour SE MTX K&N 3530, UR UDP, 19# Injectors, mystery mod, FMS wires, Fordchip.com chip, SVT: TB, Flywheel, clutch, exhaust 04 Grand Caravan SXT