That one I wouldn't even touch, and I don't mind doing my own stuff to save some money. First thing, you're going to have to jack up your car so you're able to take off the plastic, lower cover. I have a 1999 model ZX2 Sport, but it can get pretty tricky. Lets say that you do have the covers off. You're going to have to loosen the belt tensioner pulley, and take off the rest of the other pulleys operating your system (alternator/air conditioner/etc.). Considering that ford loves to cram 50 lbs. of mechanics in a 20 lb. engine compartment, this won't be exactly easy to get to. Next, you're going to have to remove numerous gear shims and other things to remove the timing belt. BUT, once you put a new one on, you're going to have to be absolutely sure that both gears for the cams are aligned with respect to one another (one side up, one side down / alternating when running). If that doesn't happen, it's going to screw up everything else. Personally, I would have somebody else do it. Go to an AutoZone or something and take a quick peak at a Hayne's auto manual. You'll get a better understanding of what is in store if you want to do it yourself.
H. McCartney, December 2004