Nancy,
Have you gotten more information since you posted your message above? It usually doesn't take long for a search of the bone marrow registry (including looking for cord blood matches).
Children undergoing transplants will have good and bad days, just like adults. You can read about a 10-year-old's transplant experience in
Evan MacNeil's Personal Profile. Of course, older kids are different in that they can understand what's happening to them and can tell you how they feel.
Kids in the hospital like the same types of activities they enjoy at home, although you're limited to what you can do in a hospital setting. Quiet toys are a mainstay, and human interaction is often the best distraction. It's much like traveling with a youngster, where you have to keep them occupied when they're awake on a plane, train, or long car ride. Hospital staff can probably suggest some ideas. They may also tell you items to avoid. For example, some hospitals may tell you to leave the stuffed animals at home when a child is immunocompromised.
Please let us know how it's going for you and your son.