I was referred here by a game I found at another site that uses Quest. Unfortunately, it appears to be very out of date. When I try to do some things, I get syntax errors in the debug window. I tried loading it in QDK, and it said that the game was made for a version of Quest before version 3.0, and that I can't edit it with QDK for that reason.

Is there some place where I can download an older version of Quest to run this thing?

Quest is designed to be fully backwards-compatible with older games, so they should run without problems. If you could please send me the broken ASL file (or tell me where to download it) I can take a look into why this happening.