The Zetec conversion has been covered time and again. I guess it's worth digging up the most informative posts and putting them in the FAQ.
Here's a website that comprehensively covers all aspects of a Zetec install:
http://www.toyne.org.uk/zetec.html
There are too many possible variations to write down a single, definitive guide. Blacktop or silvertop, stock intake manifold (and convoluted steering shaft) or bike carbs, or bike injection, stock engine management or aftermarket, Mondeo 1.8 clutch or a redrill for a Pinto clutch, clockwise or counterclockwise water pump, standard or custom alternator bracket, Pinto starter spaced out or CVH/twink bolt on, Raceline water rail or a recess in the chassis for the stock plastic thermostat housing...