Hi,
Please chek this instructions as how to activate a blackberry on a Blackberry Enterprise Server……
From the main menu screen, go into SETTINGS > OPTIONS > ADVANCED OPTIONS > ENTERPRISE ACTIVATION
It will now ask you for an EMAIL ADDRESS and PASSWORD. Enter in your email address and password given to you by network administrator.
Click in your trackball or trackwheel to show option menu, now click ACTIVATE.
After activation is complete, it will alert "ACTIVATION COMPLETE"
*Also check these sites….
http://hosting.intermedia.net/support/kb/default.asp?id=1041
http://www.lockergnome.com/it/2006/06/28/getting-ready-to-sendreceive-email-on-your-blackberry-device-part-ii/
Thanks for contacting fixya.com