Within Home Patrol Sentinel, choose the Update tab at the top of the screen.
Choose Update Master HPDB, this will take a few minutes depending on your Internet and computer speed.
Once the Master HPDB has been updated, you can then choose to update it. You need to be careful, I do not recall all steps but you can miss installing the update if you are not careful.
To verify you have the latest Database, do the following:
From the Home Patrol main (Listen) screen, press Menu
Press Advanced Menu
Press the Down Arrow, far right lower corner
Press Version Information
The latest Firmware Version is 2.04
My Database is a few weeks old, it shows as Database Version 02/09/2014, I know there is a newer update, I will probably update again later this week.