Thanks for posting your question here. While the scrolling gallery is set to refresh automatically about every 4 hours which will update item prices and a few other things, we do not currently have anything in place that will recognize when the header/gallery image for a listing has been changed and update the image used in the Auctiva store and scrolling gallery automatically.
However, our customer support team has access to a utility that can be run to update the scrolling gallery images for your active listings upon request. I have just run that command on your account and, as a result, your scrolling gallery images should be updated to match the current header/gallery images used in your listings within the next 4 hours.
If the scrolling gallery images for these items do not get updated as I described, please contact our customer support team by mousing over the "Help" tab within your account and then selecting the "File Support Case" option.