Okay. iPhone first gen on 3.0 software. Do I just download redsn0w and do whatever it tells me to basically? or do I need to have 2.2.1 then upgrade to 3.0 while using redsn0w? I just want to make this really safe, If get even close to bricking my iphone I would flip out >.< I have a windows XP. Any precautions I should take?