OK first off thanks to whoever can help me, I am a at&t customer, and I want to buy an Iphone 3g.

So, here is my question, If i go out an buy a brand new iphone 3g 16gb how can I change my call settings? for instance if i want to bo able to delete calls completely from my call list, I will need to jailbreak it then install the installer aps correct? and how would i jailbreak ?

sorry this is all to new to me

To delete calls, press delete (it'll be in the manual), for everything else use the search function