I believe the mobile Tom Tom maps are a separate download from the ones you use in your standalone/car unit. You might check on the Tom Tom DVD install if anything is present for mobile devices. FWIW, I sometimes use Tom Tom 6 on my ATT Tilt (no longer have the original DVD). Hopefully it's compatible with the BJ too. Here's a site you might use-
Unlocking the GPS receiver-
Once that takes, the GPS should work with third party programs such as Google maps, Microsoft Live Search and Garmin.
Here are some additional resources on using your Blackjack/GPS/WM6, etc.
After my crappy experience with the pantech duo(replaced 2x!) I have a blackjack 2. I also have the Tomtom GPS system that I use in the car. From what I understand there is a way to put those files into the phone, and unlock the GPS system in the phone to work with Tomtom. Is this correct? If so, which files, and how to I put this information into the phone. The model of the GPS is Tomtom One.
I tried to search but came up with no instructions on how to load GPS maps onto a phone.