If you're not able to find the Facebook Application in the App World, do this:
1. Go to facebook.com.
2. On the Home Page, there is a link "Get Facebook for Blackberry and Browse Faster."
3. Click it & Download the Application.
Now you have the App in your Phone.
If you're not able to find the link on the home page. Just login and at the bottom, the link will be there
Have a Nice day Posted via BlackBerryForums.com Mobile