Automatic Backup on Home Computer with The Bat Voyager

Hi all,

I'm starting to use The Bat! Voyager, and was wondering how to setup one of 
the advertised features.  On the RITLabs website, they've posted the following:

| Should you lose the flash-drive, you lose only a cheap memory device,
| but all the information will still be present in a backup file on one
| of your computers. Restoring the data to a new flash-disk will take
| just a few minutes.

This sounds perfect for my needs, but I'm having trouble figuring out how to 
configure the automatic backup feature.  Also, will it be configured to backup 
on startup or shutdown?

-- 
Thanks,
Januk