New to blackberry and when I tryed face book it said.

"You are currently on a service plan that does not support this application. If you want to use this application please contact your service provider to upgrade the plan"

however sim I have has data on it. No forums seemd to have correct answer.

so if you have this problem here is how to fix it.

1. uninstall face book
2. connect to web browser via 3g or wifi
3. log into face book

from there its easy. facebook knows you have a blackberry and allows you
to download latest facebook app from them directly.

There after no more errors.

Hope this helps. if not oh well merry christmas anyway.