Good morning!
There is a way and you just need a little HTML knowledge to do it.
Click the Listings tab, or follow this link,
http://www.auctiva.com/listings/landing.aspx. On the right side of the page near the bottom there is a link for Customize an Auctiva Template. Click that link and it will take you to a page where you can choose the template you would like to customize. The HTML for that template will show up in the box and from there you can redesign at will.
Once you save the template it will show up under the Custom category in the template gallery when you go to choose a template for your listing.
Hope that helps!
Cara