Hi Sassy - Ebay will display your listing in "my ebay" as soon as it posts. The listing will also show up on your "active listings" page on Auctiva at that time. However, there is a normal delay of about 6 hours or more before it actually shows up in Search, so you also need to check there. Auctiva is supposed to update only every 4 hours, so you will always get the latest info on listings from your "my ebay" pages instead, which update immediately.
If Auctiva is not displaying your auction info after you have confirmed posting to ebay (and waited the 4 hours for updating), you could file a support request from the Help page. Personally, I only care that my info on ebay is correct, since Auctiva's updates are so untimely and unreliable.