No, 123 Success didn't involve a Points Booster. The way it worked was this:
Every day you were supposed to do 20 minutes of exercise--movement of some description. Walk around the block, do housecleaning, get friendly with your spouse (

!!!), anything that got your heart going. For every 20 minutes AFTER That first 20 minutes, you got an extra Point to spend on whatever you wanted. So if you took a 60 minute class, say, the first 20 minutes went to WW and the last 40 (And thus 2 Points) went in your 'pocket'.
Whether you can use the Winning Points Pointsfinder with 123 Success, I do not know. I ignore exercise points. If I'm hungry, I eat a bit more, if I'm not, I don't.