Reply from Telenav when I inquired about getting a PIN last week:
Hello,
TeleNav 5.1 is not currently available for Rogers customers. The current version for your device is TeleNav 4.7. Any time that you download a version of TeleNav that asks you for a PIN that is an indication that it is an incorrect version for your phone as Rogers customers do not manually add their PIN.
Please deinstall TeleNav 5.1 and reinstall TeleNav 4.7 by going to the following link from your Internet Browser on your Blackberry:
TeleNav
If you require assistance with TeleNav or your wireless account please contact Rogers support directly at 1.866.931.3282.
Have a Great Day!
-Steve W.
TeleNav Customer Support
TeleNav Support | 1.888.353.6284
TeleNav Track Support | 1.888.353.6282