I made a thread on the quickpwn forums asking for a firmware for an iphone 3g on ATT that has never been jailbroken. I got a response and I've been downloading the file, not sure if it works yet. Head to the "Jailbreaking/Unlocking the iPhone" subforum on the quickpwn forums and find the thread "Looking for a specific firmware"

yeah, this is the same one i need. think you can post a link here? if not, email to msly at berkeley dot edu

I have a iPhone 3g that I've never jailbroken before. I upgraded to 3.0 via iTunes on Tuesday when it was released. Will I be able to use the custom firmwares that are being uploaded to jailbreak my iPhone?