How to get my Facebook ID?
You need your NUMERICAL Facebook ID (ex: 68310606562 and not markzuckerberg).
Click on your Facebook profile and look at the URL, it should resemble this:http://www.facebook.com/profile.php?id=68310606562 where 68310606562 is your Facebook user ID.
If you have a username (ex: markzuckerberg), lookup your user ID with this URL: http://graph.facebook.com/markzuckerberg