Try these games and tutorials

Online free typing tutorial
keyboarding tutorial

Learn2type for kids
http://kids.learn2type.com/Tots

Online typing course
Begins with home row keys and how to place you fingers on the keyboard

Dance Mat Typing

Typing Games
Fun games that will help with positions of letters on keyboard and typing text

Cup stacking
http://www.gamequarium.com/cupstacktyping.html