Replacing rear power window motor/regulator

Hi,

My mother has a 2002 Ford Focus SE that has a rear window that has to be held up with tape. The window motor used to make noise and no longer does. I need to know do I need to replace the motor and the regulator? In addition how hard is this to do? I replaced window motors on a Chev. Astro Van and that was a pain. Had to drill out the rivets to get access.

Thanks
Bluelogic

Pretty sure they should be just held in with screws (once you get the door panel off) I know replacing them on my moms van was the same way as your astro (had to drill out the rivets)