Mac Forums

My friend gave me his old iphone and I've been trying to jailbreak it all day. I have downloaded 3 programs, nothings worked and finally I used jailbreakme.com on the actual iphone and i thought I had it, as soon as I put my own simcard in, it tried to have me go through the process of setting up an itunes account. I have at&t but I am trying to jailbreak it because I cannot afford the monthly payments. someone please help!!!