Yeah , after reading/editing/thinking about 2 day and nights, I finally turned my XPsp1 in to a patched and slipstreamed with sp2 with the desired reg tweaks that I needed. First test went pretty well in VM, most of my reg tweaks applied and my setup screen changed (planned to changed everything but don't know how to change the progress bar) ... Needed a bit more editing of the progress bar if someone can tell me how to change that.