CWarrior - How old is your son now, and how is he doing with everything? Any advice on helping the kids work through it?
He's doing great--all he knows is two parents, two homes, two sets of holidays. Kids forget nearly everything before 3-4 years old. He'll only "remember" if you keep a photo album around of early days.
Young kids have short memories. If you can distract them, they may forget about the other parent for awhile. Five years later you may still have trauma from it, but they won't remember what transpired.