You go, girl! Follow all of Sparkpeople's instructions over time and you will have jaw dropping success. Personally, I am addicted to the nutrition tracker and month long bootcamps (you only get one trophy for a bootcamp completion, but you can do them as often as you want). You will most likely hit a plateau here and there, but don't get discouraged. If you follow the plan, your body is being sculpted in the process, even though it might not register on a scale.
Can you tell I love this site?!! It has been my Godsend and I just need to tell you!