Just another noobs view on this. As it was used, it would be better like Peter said, to get familiar with nvflash. Going that route you are cleaning house so to speak, putting a solid clean install in which to use the rom of your choosing. Do a god back up of anything you have on there first. There are excellent tutorial threads in which to guide you. I personally print the steps out do that I can follow them in sequence each time. Like others here I should enter my self into a 12 step program for flashers. Good luck!