Read this and let me know if you have any other questions. Blackberry 7250 on Verizon
You'll setup an account using http://www.blackberry.net/go/vzw
. This is the account which immediately gets pushed to your BB. From here you can setup other accounts to be polled and pushed to your BB. You're other option is to set your pop accounts to forward messages based on rules to
. You would choose the WebClient installation of your Desktop Manager software to do this.
The other option (assuming you're not using a corporate BES) is to use the Desktop Redirector which has to remain running with Outlook. This will forward all messages from Outlook to your BB, and all messages sent from your BB will appear to come from the Outlook account. You would choose the Desktop Redirector installation of your Desktop Manager software to do this.