Some of our first templates were conversions of Auctiva Poster Themes so you might recognize a few of them around But I don't think we plan to do any more of those. You can use our custom template interface to create your own templates (i.e. by copying the html from your current auction description and modifying it) from the Listing Tab and click Create in the Custom Templates area.
If you need further help try reading some of the tutorial posts in this forum, and some of our users might be able to help. One that has been recommended by several of our users has a website at http://kwkdesigns.com/ .. she could probably make the template you are looking for but her services aren't free.
Please let us know if you have any more specific questions about creating a custom template
-- Auctiva David