Hi Friend,
I had the scores showing up as zeros, and I fixed it on the facebook app side.
The setup I have now is:
-> Set app category as GAME
-> Include the following permissions for your app: user_games_activity friends_games_activity publish_actions
With this, I got the zeroes to go away.
I'm struggling to get the high scores to be kept anywhere... if I reload the page, everything is lost. I had assumed that the values would be kept somewhere on facebook database(I might be wrong here).
Also, the list is stupid, as any entry goes to the append string I created, regardless of its value and rank compared to others; and everyone is ranked #1.
DAMN!!!