I would not recommend attempting to repair this phone. Specifically the AMOLED screen is attached to the digitizer by glue. The digitizer/screen is glued into the bezel. No one has succeeded in replacing the screen and Digitizer without breaking the old one into many dangerous sharp pieces. Removing the glue involves heating the device to levels that risk damaging the device, 130C. This has led to speculation that Samsung just replaces defective i9000 devices due to the high cost of labor involved with repair. I really can not explain how much glue is involved.
If however you really want to give it a go, read this forum post:
[http://forum.xda-developers.com/showthread.php?t=745262|http://forum.xda-developers.com/showthread.php?t=745262]