[cpjr]

I found this....read the bottom:

When you sync your iPhone or iPod touch, the iTunes application on the computer will share its current iTunes Store account ID with the device you are syncing. This account ID will be used to make purchases from the iTunes Store and App Store on the mobile device.

The account ID that was synced to the device is displayed at the bottom of each page of the iTunes Store, so you'll always know what account you are using on the device. Simply open iTunes on your mobile device and scroll to the bottom of any page to see which account is currently in use.

Changing Your Account
It is not possible to change the account in use on the device itself or to sync multiple accounts to your mobile device. To change the account you are using on your mobile device, go to your computer and sign in to the iTunes Store with the account you want to use on your mobile device, then sync your iPhone or iPod touch with your computer again. This will transfer the new account information to the mobile device. To sign in or out of an account in iTunes choose Store > Sign In (or Sign Out).

Editing Your Account Information
It is not possible to change your account information from your mobile device. You can view and change your iTunes Store account information using iTunes on your computer by choosing Store > View My Account.

Changing Your iTunes Store Country
It is not possible to change the iTunes Store country in use on the device itself. To change this on your mobile device, go to iTunes on your computer, change the iTunes Store to the country you want to use on your mobile device, then sync your iPhone or iPod touch with your computer again. To quickly change to the correct country for your account, choose Store > Sign In. If you are not using the correct iTunes Store country for your account you may see an error message advising that your account is only valid for purchases in the iTunes Store for your country when you try to download from the iTunes Store or App Store on your mobile device.

[mectech]

Do a new registration use a U.S. base store in your area, that should fix it.

just remove your sim when your connected