Hi,
The folders are for organizing within each of those categories that reflect status of a listing. Note, you can also use Folders to organize images. They are simply availabe for one extra level of organizing what you store and track at Auctiva. How you organize is probably best implemented along the lines of how you operate (form follows function).
Saved Listings are actually stored listing code you've built at Auctiva. The active and closed are just tracking info for what happended at eBay. Import brings code back from eBay and is placed in the Import folder in Saved Listings.
Danno