I have added (version 3.04) the ability to put thumbnails and header images associated with events. Pretty cool. You will need upload your images using your FTP or other method. All you have to do to use is place the link in the event setup page. The Event listing link is 4×3 aspect. I recommend your image for the thumbnail be 150×112. For the header bar image on the registration page, that should be no wider than 450. I recommend 450 x 150 for the header image. Please let me know what you think.