I have the data plan and when I go to email set up it brings me to existing users and that's the only screen it will go to and I don't have an existing email unless they mean the email I had on my blackberry pearl but when I try logging in with that email (which is still my current email) it doesn't work. Can someone help and tell me what I need to do to set up my email. I've had this phone for like 4 months and I still haven't figured it out!

Did you log into your BIS account and change the IMEI and PIN to that of the new device?

Did you read this from the FAQ? How to add / delete email addresses - BlackBerryFAQ