Hi Geo,
Thanks for letting us know. I have reviewed your account and noticed you made the duplicate hidden, which was the correct course of action to remove it from your Auctiva store and store window. I have also notified our engineering department of this issue and they will have the duplicate removed from your active listings page as soon as possible, most likely by later today.
If you encounter this problem again in the future, please file a support request using the appropriate link on our help page:
http://www.auctiva.com/free_auction_software_help/help.aspx
-Mike