as a personal trainer i have to agree with what a few others said here...
fuck those canned diets. i don't even bother with them.
carbs just so happen to be a very important aspect of your diet. there are generally 2 types of carbs from a broad perspective - good carbs, and bad carbs. bad carbs are usually found in things like junk foods, good carbs are usually found in things like natural foods.
1. increase consumption of natural foods (fruits, vegetables, pastas) and decrease consumption of junk food.
2. eat at least 5 times a day, smaller portioned meals - this makes you actually burn more calories because the digestive processes must work more (which require energy, calories).
3. exercise. your body is meant to be exercised - if you don't use it, you lose it. work in resistance training (freeweights) and cardio - and try to make it to the gym at least 4 times a week.
follow those very basic steps and you will do fine.
these sites can help:
www.healthygo.com /
www.bodygain.com