04-16-2013 10:58 AM
Hi and Welcome to the Community!
If you updated to BBM7, then local storage of contacts was actually completely eliminated, and only server-based storage of your BBM contacts now exists. A local backup of BBM contacts taken via older BBM versions is no longer usable. To use that local backup. you'd first have to fall back to a prior BBM version that can use that backup, then update again to BBM7 so as to put them back up to the server again. You might find this thread helpful:
04-16-2013 11:20 AM
04-16-2013 11:25 AM