What a great bunch of advice you have received here. They are all right. As you lose the weight to reach your target weight the fat will decrease as well. As you become leaner and continue to work your abdominal muscles that "tummy" area will get stronger and hopefully flatter. Here's the rub, once you get a fat cell it's always going to be there. The most you can hope for is to flatten it out as much as possible. In order to get those "rock hard abs" you see on TV, a woman has to get down to around 12-15% body fat.
The suggestions to try pilates are a great idea. I would also suggest yoga. As you become more fit you may try some Zumba, Insanity, Tap-Out, or other high intensity (notice I didn't say high-impact) cardio classes 2-3 times a week. beachbody.com
has several you can choose from if you prefer to workout at home.
As others suggest, give it enough time to achieve your goals. Good luck.
JUICE to you!