Hi did you get your fitbit to sync? I also didn't see it right away, but I think I may have figured it out. I used to pair with My Fitness Pal, but didn't like that service as much as Spark and over there they clearly stated that food logging had to be done on their service (and then it would show up over on fitbit). I tried this and it worked. Food logged on spark transferred over.
Also you get the activity to sync FROM the my fitness page. There is a little button to click which says get activity from fitbit. When you click it, bingo the steps show up.