Refeeding is designed to introduce your body back to carbohydrates gradually, so that you don't just suddenly build up massive glycogen stores (which will also hold water) and so put on a lot of weight.
It can take between 4 - 14 days, depending on how long you've been on the program.
Maintenance is the period after refeeding, where you can use some other lipotrim products to stay at your current weight.
i suppose that depends on what normal food is.. if you are having around 2000 -2500 calories a day then you shouldnt gain, also depends on excersize... and also getting rid of most of the fats that you may have consumed before... your glycogen stores will stabalise with the refeed and maintenance but if you are eating too many calories/too much fat then the weight will pile on and then some, as your muscle tone may have depleted on lipotrim (ketosis burns muscle as well as fat) and what muscle you previously had can easily turn in to fat, making it easier to get even bigger if you dont watch what you eat for the rest of your life.. hths x
You go back to normal food whenever you like. Obviously if you go back to your old eating habits you'll put on weight. But the idea behind maintenance is to get you used to real food, with real portions. It's a safety net type thing, for your own support. There's nothing to say that you will put on weight just by not being on maintenance.