Sunroof/Driver side window problems

1998 Jagaur XJ8 with 101,000 miles

I just bought this car a week ago and the driver side window will not roll down and when I put the sunroof back and a few seconds later it closes. At first I thought it was because I hit the valet mode while test driving it, but I turned it off and both problems continue still. I think I can hear the motor running in the driver side window but I don't know how to take off the door panel to take a look at it from the inside. I don't have the money right now to pay to take it to a dealer so any help is appreciated. Thank you.