Hello, I picked myself up a SW12xxx serial at Sears yesterday with 4.4 fw version, and just bought my Gateway from modchipsdirect. The question I have is, can I look up what retail carts or 4.5 and below and be safe to play without ruining anything I'm about to do with Gateway? Do I need to make sure I stay off the internet or other precaution so I don't get stuck on new firmware? Thanks in advance. Apologies if this is the wrong place to ask.