as far as i can remember its straight forward, losen the nut on the arm holdin alternator, to give slack to the belt, replace belt, fasten nut so u can move the alternator back without it springing forward, pull alternator back till belt is as about as tought as the original. tighten nut. ur done, was ages since i had a fiesta tho, but am sure its as easy as that
Kev, February 2005