Tilebased games in mx2004?

ok… So I started making an artbased platformer some time ago, then I couldn’t use flash for a long time, and now when I got back to it, I realized…
hitTest isn’t that fun, cause the guy sinks through the floor sometimes, and so on… on gotoandplay.it I found tonyPa’s tilebased tutorials, and It seemed so much better than artbased, but here’s the problem:
I use mx2004, and the scripts doesn’t work properly… Is there some tutorials on tilebased games in mx2004, or should I look for a book or something?