[Brian]

Unfortuntely, yes; when you quit and didn't save the changes, OmniOutliner interpreted that as "No, I don't want those changes after all."

If you're using 10.5, Time Machine would help you get your file back.

One thing I wanted to follow up on - if the documentation says that we save 3 backups, that's in error. Can you point me at where you read that, so I can get that fixed?