There are two ways you can download apps to your BB. 1) Using your Application Loader software on your desktop(BB can with a disk to run) 2) Something called OTA...which stands for Over The Air...meaning via your BB browser.
For Berry 411 you can choose to install using either or. Attached is a link to install via OTA. Send this url to your BB and install from it. http://thebogles.com/berry411/3.30/berry411.jad
Hope this helps