Ok in an effort to help you.
http://support.apple.com/kb/HT1976 - use this about cellular fields. I think you obviously have your setting wrong regarding the network. It tells you how to check whether you have 3g on. Hope this helps.
http://support.apple.com/kb/HT1976 - use this about cellular fields. I think you obviously have your setting wrong regarding the network. It tells you how to check whether you have 3g on. Hope this helps.