I'm trying to use redsn0w to jailbreak my iPod. I've downloaded it and have gotten to the first part where i have to find my IPSW. I clicked browse and went to: myusername/library/itunes/ipod software updates and clicked on my IPSW. The redsn0w window says that it can't recognize my IPSW. So i'm really not sure of what to do. I have a macbook computer just in case you need to know that. Please help !! thanks in advance