Start exercising. I found it supresses the the food cravings and of course burns calories. Go for Cv (Cardio vasculor) classes/exercises so running, spinning, general cycling etc.
Reduce your carbohydrate in take and up your protein (your body cant store protein so it wont sit around the middle as fat!
I've done the cabbage soup diet although, Tallulah, I dont like cabbage either so I just used vegetables. Basically, get the recipie and use everything other than the cabbage. But you will find it hard to work out with such a restricted calorie diet. You're best bet is to adopt a 1 week diet of chicken, fish, fruit, vegetables, small amount of nuts and mid week have a Jacket potato for dinner (stop the carb cravings). Could throw in some low calorie soup as well, dont starve yourself! Dont drink alcho and keep your water in take to 2 liters a day, throughout the day, although if you're working out make sure you stay hydrated. Just be sensible, it will be hard at first but once the weight starts to move you'll feel far more committed to it and want to see more weight budge.
Good Luck
LN x