Oh, well, this is ironic. In the time you've been gone I've written a Pac-Man tutorial as well. It's almost done and I've been using the strategy you explained to make it (writing the game and making a companion tutorial). I'm really sorry to ask this, but maybe it would be better to do a tutorial on a different game? I'm afraid two Pac-Man tutorials would confuse people and might just be more of the same material and would not help people if they found the other tut first.
Here's the link if you want to check it out, it was stickied but a few months ago.
http://forum.thegamecreators.com/?m=forum_view&t=93103&b=1
I'm really sorry I didn't check out your old one before I made my tut, I could've done asteroids or something instead if I'd known.
Beyond this place there be dragons.