I would advise you not to learn penny whistle Tab, it is a dead end and will restrict you. Learn the dots or play along with your favorite CD. There is a program called slow speed CD which allows you to play a CD at 1/4 speed without changing the pitch of the music, start slow and speed up as you get the confidence. Also take every chance you get to play with others, it doesn't matter if you hit a few bum notes. Most importantly practice every day 5 to 20 min is fine, and enjoy yourself.