Hi czbkz,
I checked the image URL referred to in the message you posted and that image is no longer hosted on our servers, which is why eBay was not able to generate a gallery image for the listing. The only thing that "should" have caused that image to be removed is if you had deleted that image from the "Manage Images" page within your Auctiva account.
When you delete an image from your Auctiva account, we will actually keep it hosted on our servers for 7 days before permanently deleting it so, unless you go through the extra step of going into your Deleted Images folder and permanently deleting it yourself. Therefore, the image should still show up on the web for 7 days after you delete it.
If you are certain you did not delete this image from your Auctiva account, please contact our customer support team and we'll see if we can figure out what's going on.
You can reach our customer support team by completing the web form on the following page of our site: http://www.auctiva.com/free-auction-software-help/help.aspx
-Mike