How do you use the app store on the iphone

[gummychoco]

hi, I was wondering how you download some things on there like games and stuff because everytime i try to download a game, a box pops up saying, "enter account information" and that includes your username, and password.

how do i know what my username and password are?

also, i jailbroke and unlocked this phone and now have a version of 2.0. i used my sim card from my samsung cell phone which has a plan under at&t. will the phone company(at&t) find out if i download something from the app store? thanks!

[sayam]

You need an iTunes store a/c. If you already have one, then it's username and password are required for appstore!

[AKA_Ben]

Hahaha, oh wow. Should you even have an iPhone? It doesn't seem like you can handle such "complex" technology... :P

[gummychoco]

lol, i never asked for an iphone. my dad just gave it to me last week because he just got the 3g iphone.