I was reading the guide to install custom firmware, but it's listed as cfw-3.55. My PS3 has the 4.00 update. Will this change any thing from the guide. If so how can i fix it, or is there an updated version of cfw. The only things needed are Netflix and my downloads to work. The only game I would need PSN for is my Festival Of Blood, but I can live without it if need be. I have two systems. I want to hack my 80GB reverse comp. Please help. Thank you.