Put the headset in "pairing mode." Then on the device go to Options >bluetooth. click the wheel and select "add device." When asked for a passkey enter 0000. That should pair the headset with the BB. Then turn off the headset and turn it back on again. It should pair automatically.
The link below should help. Pay particular attention to step 3 for how to put your headset in pairing mode: http://www.motorola.com/mdirect/manu...5_9495A12O.pdf