How to upload games from the Apple store on a unlocked IPhone 3G?

I recently purchased an unlocked 3G for my daughter and when trying too download games it states I need to upgrade to 6.0 only thing is I was told not to upgrade the phone cause I will lose the unlock. Is there a way to get around this without messing up the phone?

Unfortunately no, you might be able to tie it to the carrier you will keep, then upgrade. But its not for sure. Don't you hate apple, forcing you to update or not get any apps. Hey, she could jailbreak it and download cydia and get apps that way, besides there are much better ones in cydia.