90 Lumina front right window won't go up.

I have four door 90 Lumina and when I tried to get my front right power window to go up today it only went about half way and it's alignment flew totally off and the window looked like it was going to fall out.

My question is, is this hard to fix? And about what is the cost of something like that to fix?

Its a Better Do it Urself Job, Just Pull The Door Apart and Look For the Prob, Happened To My Friend and we fixed it in 12 Mins