Hi, and welcome to the forums.
You need to make sure you have a Blackberry data plan, not a 'regular' data plan. This will give you the Internet Browser icon and allow you to set up your email via the BIS website, found here: https://bis.na.blackberry.com/html?b...rint&locale=en
You do not need the Enterprise Activation unless you will be connecting to a corporate BES server.
You may need a special plan or features for text messaging.
Check out the BBFAQ in my signature for lots of good info.