Hi random brunette,
Have you tried updating your Seller Details profile? It also has an About Us section and can be accessed from here:
http://www.auctiva.com/profiles/landing.aspx.
If this doesn't fix the problem, I would file a support request ticket so we can take care of the issue quickly.
http://www.auctiva.com/help/requesthelp.aspx#
The About Us info under the Stores tab will update your info for all you listings in your Auctiva Emporium. It is still a good thing to keep updated, but those details wouldn't show up on your individual listings.
Good luck, happy selling and happy Friday,
Jenny at Auctiva (Another random brunette)