Hey, sorry you are confused. Don't get discouraged, though. I think ww recommends that you count points for the first few weeks, but here is a little info if you want to tweak it a bit:
Core (the old name for Si Fi foods): If you notice in your book, the foods that are simply filling are marked. On the "core" plan, you:
1. eat only the si fi foods
2. eat until you are satisfied and not too full
3. eat non si fi foods but count them toward a 35 point allowance for the week
Counting Points is pretty much the same with one addition. WW recommends that you choose more si fi foods and the foods that have "set points" are eaten in an unlimited amount for one meal only. For instance if a food has a point value of 3 and a set point value of 5, you can eat the specified amount for 3 points or an unlimited amount of that food for 5 points. You are only going to do this for the one meal in which you make this choice. Remember that an unlimited amount of food still requires you to eat to satisfaction, not pain!
I hope this helps. Remember, you can always call your local ww office and ask any questions that you have.