I'm sorry, it was late, I wasn't in a good mood, blah blah blah, and I didn't feel like going back and looking it up again. Anyway, the error message was:
ERROR: You must create and save a game first in the Room Editor before you can use the engine.
(Unable to find 'ac2game.dat' in C: WINDOWS/temp/install2)
Oh, and by the way, what and where's the room editor? Sorry, I'm new to this. I downloaded the "RPG Toolkit" and I've tinkering with it for a few weeks until I decided I wanted to create an action game, too, so I found this site. I'm really new to this.
Sorry for taking so much of your time to deal with me and reading this.
P.S. If you want the RPG Toolkit, it's (kinda obvious) at www.rpgtoolkit.com