Hey rockhoggie, could you please share which permissions did you have to correct at Facebook? I'm going through this "Score: 0" problem too!
Edit: I got this part, I hadn't set it to Game category on App Details over there at FB.
Now the score is correct for each submission, but it doesn't seem to be writing anything anywhere: the rank position is always #1, and the list does not get organized by anything other then when it was posted - each submission will go to the next line regardless of the score being submitted's points.