Ok so I bought a brand new 2G (Original) iphone off of ebay and finally got it in. I know a little when it comes to jailbreaking because I did it a long time ago when the first ipod touches came out but haven't done it since and I'm guessing things have changed a lot. I just entered my sim and don't know where to go from here. Don't know what firmware, baseband(Don't even know if this term is right?), or whatever it has... Also I'll be using it on the T-Mobile network. Thanks in advance.