Okay... I had to double check something in my mom's cookbook or I would have replied when I first saw this yesterday. My mom did a lot of jelly and veggie canning when I was a kid. I remember helping her a lot with somethings. Many a fond memory of slightly burnt fingers/tongue, but worth it for a bit of warm jelly.
The easiest way to peel peaches:
Blanch them. If they are good peaches like you say they are then it should just take some really hot water instead of water that is near simmer. Basically the "tighter" the skin the hotter the water. Best thing to do is try it with 1 or 2 and see how they peel.
Blanching also makes the peach "meat" softer so a simple potato masher should work. Depending on how old your son is this would be something he can do to "help mom".
There are a few ways to actually "can" the jelly using both cold and warm techniques.
You may want to look at the Sure-Jell website. Mom used to have enough Sure-Jell around the house in the summer to choke a horse. But then she did Peach Jelly, Strawberry Jelly, ChokeCherry Jelly, Rhubarb (aka Pie Fruit) Jelly, Apple Jelly... you get the picture.
http://www.kraftfoods.com/surejell/
How cool! They now make it with Splenda! But they also have tips on how to make jelly/jam without any sugar too.
Hope this gives you something to start things off with!
D.