Need help to submit score on social networking site

Unity Engine
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1

Hi friends,
Is that possible to submit score on social networking site like facebook, twitter from iped?
if yes so plz help me for script or may be u have any links about submitting score plz send me.

And ya I have one more problem that suppose I create 5 levels of game and I publish it but now I have to publish only levels not full game so is that possible in unity pro iphone.

2

There is some information about integrating with Facebook in this thread.

3

http://blog.getlimed.com/lime/2010/03/add-facebook-connect-to-a-unity-iphone-game.html

OpenFeint