Hi Stuart,
When you scheduled a listing to post to eBay through Auctiva, it is normal for the listing not to show up in the "scheduled listings" section within your eBay account. However, it will show up on your Scheduled Listings within your Auctiva account until it is posted to eBay at the preset time. Once it has been posted to eBay, it will show up in the "Items I'm Selling" section within your eBay account though.
In any event, I reviewed the one listing that you currently have scheduled and verified that it is scheduled to post to the eBay UK site. You can verify this by opening up the saved listing for the item and making sure that "United Kingdom" is showing up in the "eBay Site" drop down menu in the upper right corner of the page.
I hope this helps. If you have any other questions regarding your account, please feel free to contact our customer support team using the form on the following page of our site:
http://www.auctiva.com/help/requesthelp.aspx-Mike