Darn, there were a few game mechanics I wanted to learn from that tutorial. Do you have the d-mon code available anywhere? I am having trouble with creating an inventory of fighters that can be switched in and out during a battle.
Sorry, I don't have that project file posted (and may not actually have it backed up!), but I did just launch the first article in my RPG tutorial series today with GB Studio Central. One of the future articles will cover swapping party members, so that may help you out!