I am very surprised that you have actually got the basic phone function on the 9530 working on AT&T. (That's if you have, of course.) BlackBerry Storm 9530 is a CDMA phone, while AT&T is a GSM operator. It is not possible to use a CDMA phone on a GSM network, vice versa. Even if the CDMA phone is branded as a "World Phone", it will only work with GSM networks outside of the U.S. due to the fact that U.S. GSM operators use a different frequency.
I just recently bought an unlocked blackberry storm 9530. And I can not access the internet. AT&T does not support the phone. Is there another way for me to be able to access the internet frome my phone.?