Hello Iris and welcome,
I also have 100 pounds to lose, I would be happy with more but would settle for less. I started Sugar Busters last week and at my first weigh-in had lost 3 and 1/2 pounds. My next weigh-in is Friday, but it feels like I lost more this week. I love SB, it is the only plan I have tried lately where I have lasted more than a week. I feel great, I don't have cravings for my best friend sugar, and I feel satisfied after a meal, both in my stomach and in my head (I'll explain that more if you don't understand).
As you probably know there is a SB board on this site with some great folks posting. My problem is that there are so many daily posts that I have trouble reading them all and remembering people. It takes a lot of time. If you would like, continue posting here and I will check this thread every day.
Good luck on your first week! -Ruby