I am probably not the most qualified person on here to write a guide, but no one is doing it and a lot of people are asking for help. So since I know enough on how to do it here is the rundown: First thing and most important.... BACK UP YOUR STUFF. Download Titanium backup and backup your apps and if you wish your system folders. Then go into recovery and do a nandroid backup. Reboot your phone. Copy the ROM that you are going to use to the root of your sd card. Rename it update (don't have to I just find it easier and less confusing) Reboot to recovery. Wipe your phone data (this is way we backed up everything) Wipe the cache. Load update zip (if you didn't rename it you have to load zip file from sd card) If there are any other zip files you need to load I suggest doing that now. Reboot your phone. Once everything loads go to the market and download titanium backup and restore your apps. Hope this helps and please add anything that I may have missed or help make it more understandable.