help repairing this rust hole!!

[carolinaslim]

Just got my super back from my little sister. She had it for several years. When I started to inspect the old car notice a bad rust hole under the rear window. I remove the rust from the area but need advice on fixing it. I have some 22 guage sheet metal that i would like to weld in. I have a small aluminum piece i have used to mold to the section. I then am planning on using the mold to bend the sheet metal to. I guess what I'm asking is what would you geat folks do to fix this problem area.
I will try to post some images of the area below if I can.

http://photos1.blogger.com/img/123/2669/320/vw2.jpg
http://photos1.blogger.com/img/123/2669/320/vw1.jpg
http://photos1.blogger.com/img/123/2669/320/vw3.jpg

If these image dont work I have some pictures uploaded at my blogger.
http://blchappell.blogspot.com/
Well looks like i can't figure out how to attach the images hope the url above helps.

If anybody has some pictures of their repair of this area would be killer

Thanks Slim