Hello COTM -
If you are listing in a category where eBay support variation listings and set the Sale Type for your listing to Fixed Price, the option to add variations will be available on the lister page just beneath the area for the Item Condition Note. There is a link: "Add/Edit Variations" that will bring up the variation generator for you to create your variants.
We have steps for this in our Help pages; please see: http://www.auctiva.com/help/tu...x?id=multi-variation
If you encounter any difficulty of have further questions about this, you can file a support case at any time from under the Help tab of the site.