Hi, I am looking to take my husbands and my iPhones to a T-Mobile pre-paid plan. I have an iPhone 3GS and my husband has a regular iPhone 3G. I went online a couple of weeks ago and purchased 2 T-Mobile SIM cards. I have them with me right now and they are ready to be used. I no longer have phone service with AT&T and now looking to get the $30.00/month for 1500 talk and text with T-Mobile for both my husband and I. I need to know what to do. I know I will need to jailbreak AND unlock my iPhones, correct? HOW do I do that? I need a step by step guide on how to do it. Forgive me for being naive, but I know nothing about this. I do know that I am running on 4.3.3 and I do not know what version iOS my husband has. After unlocking and jailbreaking my phone, I can go ahead, insert the SIM cards and I should have service, right? Like I said, forgive me for being naive, but I do not know what exactly to do and all the technical lingo. That's why I need a step by step, DETAILED guide on how to jailbreak and unlock my iPhones. If there is anything else I need to know or need to do, please let me know. I just want to take my iPhones to the T-Mobile pre-paid network... Thank you so much!