Hi Andy
Have you tried adding that image to the Add HTML before event content?
A little trick to quickly make the HTML code – open a post or a page that you’ll never publish. Use the body area to add the image, switch to “Text” in the editor (from visual) and copy the code.
Then add it to Events » Settings » Display » Add HTML before event content area. You may need to try a few things to get the correct image dimensions for this spot, but it might make this all much easier.
Let me know how that goes.
Thanks,
Courtney 🙂