I don't use it, so I'm not sure...but I believe if it's hidden only you can see the stats, no one else.
If I use anything at all I use Vendio, they're free and you can either add them all at once or have it set to auto-attatch whenever you have new listings.
Here's a link from the help page that may shed some light:
http://www.auctiva.com/free-auction-software-help/help....ding-sellathon-stats