Backups? How do you "do it"?

I keep a running list of backups going back something like 3 years. I have to stomp out bugs fairly frequently due to my rather halfassed method, but it usually doesn't get too bad. My next major project will hopefully be more organized.

Did you compile the events.asm yourself, or get it somewhere? I have a file containing an outline of the events banks, but an actual assembly file would help immensely.