HI zone coach

I am extremely confused. I have been on protien power for a week and I am liking it so far. I am not over doing it on extra's and I started to work out today...

The prolem is I am worried about a few things. I am approximetely 75 pounds overweight. I am unhealthy, I have asthma and knee pain and chronic back pain. Usually back pain goes away after some stretching in the am but sometimes just getting out of bed takes convincing because it hurts to bend. I even try to stretch while in bed to loosen up a bit before even hitting the floor.

I am making a life change for myself. I am trying to lead my kids into a healthy life style. My husband is a diabetic heart patient and is on no real diet and controls everything with medicine. I want to be a good supporter of him and help him through this and hope he will make some positive changes in his life so that the years arent shorter than they may already be.

I want to be healthy I have a desire to lose weight but it is not formost in my mind. I want to healthy with good blood stats and feel better. I know that through and through this in changing my lifestyle I will end up losing weight which is a benefit.

Protien power makes sense to me, I am doing great on it, but today mostly I have heard other things that have made me want to research a little more to make the best decisions possible.
The zone will say one thing, weight watchers says one thing, PP, says one thing, Atkins says one thing. They all believe they are right so who do I believe?

I am just scared to be doing something to my body which will hurt it. I also am a sufferer of Kidney stones and I read the Atkin alert you had posted on a site and now I am scared. When I passed a kidney stone oh about 6 years back it was the most painful experience of my life. And I have had 3 kids...

Can you help explain the zone in the easiest simplest kindergarden terms for me. I should be able to find it in the library right?

Thanks for a confused little soul...