Rudy,
I'm a 'newbie' about listings here, but I can see that your items have photo ID's linked to them...but those photo numbers are not on the ChooChoo server.
Have you been uploaded new photos with each listing, or re-using existing photos from an earlier auction?
Either way...try editing your listing: The edit page shows you the photo ID linked to the auction. Since a couple of your items do not have a photo with the same number as the auction, see if you can find a photo number that provides the right image. (Might be from a prior upload for a previous listing. I saw at least one of your items that had a photo number from a different auction...but IT was not there either!)
If you have tried all of this - sorry to sound like a 'know it all'. Obviously, if the pictures are gone from the server there is nothing you can do other than upload them again. (I can offer a suggestion on how to do this, if needed.)