REPAIR DETAILS

My driver's side window wouldn't come up so I tried testing motor/regulator and couldn't get it to work. I took out window and motor/regulator thinking it needed replacing and tested it today, 9/21. It worked on the kitchen table. Now I don't know what to do. I need a window for upcoming rainy/snow season. So I have the window, motor/regulator and hardware. I just don't know what the original cause of malfunction was. And I have never put one of these in before. So I need someone to help me determine if I should put in a manual unit with crank, or put this working motor/regulator unit back in. And then put it all together working. I have all the hardware (except a few rivets) for the electric version, but no manual version parts. That is to be determined. NOTE: I DON'T KNOW WHY MY PROJECT SAYS I NEED IT REPAIRED WITHIN 24 HOURS. I DON'T. I THINK THE WEBSITE CHOSE THAT FOR ME AND I DON'T KNOW HOW TO CHANGE IT. I DON'T NEED THIS WITHIN 24 HOURS. SOMETIME NEXT WEEK ON MY DAY OFF WOULD BE BEST. I'LL FIND OUT WHAT DAY THAT IS BY FRIDAY.