Hi phattygirl73,
Thanks for helping to bring this issue to our attention. The problem of the stock images not showing up on the Auctiva preview page for some products is a known issue that we hope to resolve with a future update of the Auctiva site, although I'm not quite sure when we will be able to resolve that problem at this point.
However, as you may have noticed when posting these items, the problem is limited to the Auctiva preview page and your stock images will still show up when the listings are posted to eBay.
If you need any further assistance with your account, please feel free to contact our customer support team by mousing over the "Help" tab within your account and selecting the "File Support Case" option.
-Mike