can't recieve mms on unlocked 4s ios 6.0
I bought an unlocked 4S iphone 3 months ago from Apple. Can not send or recieve picture messages! Can text other phones IOS 6.0.1 Internet says I must jailbreak it, but there is not a supporting program for it yet??? i am so confused and irritated!!! Please help!!!
iPhone 4S, iOS 6.0.1, can't send or recieve mms pics