Image not showng on post click-through

Thanks for your great theme! I need the post image to display on click-through i.e. after the post has been clicked. I’ve set up the posts as “chat” because my client wants the total post text to display on first page. I’m using “Featured Image” to display the image. I’ve played around with different configurations but nothing will display the post image on click-through.
Here’s the site: landofexcess.com

help! thanks!