Other contributors have said "How can you get a free typing tutor from the internet?" is the same question as "Where do you download free typing tutorials from?" If you believe that these are not asking the same thing and should be answered differently, click here
As of now, only the floppy disk version of the first Mario Teaches Typing has been released as a ROM. I'd say the only way you could play the sequel to Mario Teaches Typing would be buying one off of...
I've found some pretty good free tutorial videos at www.simmed.com. Quite a range of tutorials including venepuncture, cannulation, drug injections etc. Their products seem pretty useful too.