I can get you a pic later today. but it should be one zipper on the right side of the window and one on the left when the window is in place.
both zippers should be on the left when the window is off.
To put the window back on, the beginning of the "zipper teeth" must be fed through BOTH zippers on the left side. Then you simply zip up the window with the top zipper.
lol sorry man if this is EXTREMELY confusing. I just confused myself typing this. I messed around with my rear window for literally a half hour the other day because it's been awhile since I had the top off. Like I said though, I'll get a picture up here later.