While the flushes are terrific, they can't be the only thing you do to restore health once you have gallstones.
What kind of meals are you having? You should restrict your diet for at least 3 months to a low fat, only olive oil and safflower oil, no junk food, no deep fried, no sugar or flour, no fruit except for green apples, no more than 4 oz animal protein a day, etc. Your meals should be small and frequent rather than large. The MC lemonade drinks are a wonderful way to keep your system alkaline and circulation flowing.
You should also be supporting your liver with herbs and taking P&B shakes one to two hours after each meal - and the day after flushes - to ensure that all your bile is getting taken out of circulation. If there isn't enough fiber in your diet than your bile is simply returning to the scene of the crime.