Replaced my serpentine belt some time ago, can only remember it was tough getting a wrench in there. But it was easy putting the new one on. I just lined the belt up on all the pulleys except the roller on top, held a rubber mallet (hammer would work too) by the head and pushed straight down on the belt far enough to slide it under the roller pulley. It was a snap. If you have a new belt and can't get the old one off just cut it and pull it out, put the new one in like I did. Probably take about ten minutes.
Doug
p.s. Mine is a 96 Contour ZETEC
