How to Enable MMS on the iPhone 2G
There is a new simple hack that allows iPhone 2G users to enable MMS on their iPhone. Your iPhone has to be jailbroken to enable MMS. If you don’t know how to jailbreak your iPhone, please read this.
Now go to Cydia and look for the application called ActivateMMS2G from the iSpazio source. Install and reboot your iPhone and bingo!