window regulator re-install

Please help. I took my 1992 500 Sel to a local shop to have my LR window regulator replaced,the mechanic who removed the old one has quit. No one in this shop know how to put it back together.It would be greatly appreciated if someone can post a picture and directions on how i can finish this job that i did not start. I would appreciate any help you can give me.I do not want to end up with a lot of broken and left over pieces,which i am afraid will happen if i tell them to put it back together.