I might be chiming in pretty late here...but my suggestion would be to be very honest on the application.

You don't have business references because you haven't worked in 6 years, but you do have personal references.

They are looking for 6 hours of library help, not a brain surgeon.

If you show an enthusiasm for the job, an an honesty about your situation, I think there could still be a chance that you could still get the job.

Put yourself out there and see what happens.

Best of luck.