when you say unable to "set it up" please detail the steps you are following.
Email setup generally is not a problem. You must know the email access method, your password etc. Also log into the carrrier BIS site to set up additional options.
I cannot set up an email address
Try performing the following actions:
On the Home screen or in a folder, click the Setup Wizard icon. On the email setup screen, verify that you have typed all the email address information correctly. To view the password that you typed, select the Show Password check box.
Verify that the email address is associated with a supported email account (for example, a POP3 email account or an IMAP email account). For more information about supported email accounts, contact your wireless service provider.
If you are switching from another BlackBerry« device that is associated with one or more email addresses using the BlackBerry« Internet Service, verify that you have completed the process for switching devices automatically or manually using the email setup application. For more information about switching devices, see the Learn More booklet that came with your device.
For more information about setting up an email address, visit BlackBerry - Manuals and Guides
and click BlackBerry Internet Service.