If you are the only user, use the iTunes "Save to…" button to copy the updated database from your iPad back to your Mac or PC replacing the outdated database. Do not use the "Sync" button for this purpose.
Thanks Jade. It worked. Still I cannot understand how Bento can sync and sometinhg much more sophisticated like FM can't...go figure...
You're welcome, André.
FileMaker doesn't "sync" like Bento but it can scale up to provide client/server networking over both local wifi and remote internet which is arguably more useful.