Seriously - get a copy of 'the joy of cooking'. everyone should know how to cook for themselves.
My mother made sure we could cook and sew. "I will not have my sons getting married for a cooked meal or to get a button sewed on"
The joints for the wings, legs, and thighs are easy to find, a sharp knife and it is done. Separating the ribs and back from the breast is easy as well. To split the breast lay it rib side down, place your knife to either side of the breast bone, press down and through the bone. When I was a meat cutter, I actually preferred a very sharp cleaver for this, cutting up the entire chicken. If you want the breast to be boneless that is easy as well.
Back in those long-gone days, the local Chicken Shack wanted fresh 8 pieces of cut chicken per bird. It was a lot of work, but I did get some magnificent free lunches, the elderly lady was a great cook! Everything was freshly cooked, except the sliced bread and any condiments.