[MikeB]

You're going to have to drop by counting calories and doing some kind of exercise - maybe even just doing small weights with your arms. You have to be putting out more calories than you are taking in. You'll find your knees and back will get better once the weight comes off. I also do crunches and reverse crunches in the car on the way to work, it's a way to work the abs for an extended period of time isometrically. I also do some chest exercises by squeezing my arms together on the steering wheel to help build my pecs. It may not be lifting huge amounts of weight but it's made a difference!