what and where is bb maps, and how do i make it work
ATM = At the moment
BlackBerry Maps is an application that should be on your BB already. It will work if you have OS 4.5 on your BB and you have GPS set to location On, not 911 only.
If for any reason you do not have Blackberry Maps on your BB. "You should be able to confirm that by : Options / Advanced Options / Applications.... Ther you should see or not see it.