Text not wrapping around images when using headers.

I'm using the free version of Catch Everest. When I add images the text isn't wrapping around the images where I'm using Headings, which is most of a particular page. How can I fix this? It looks fine in the Visual Edit but not on the live page? The URL to the page is below. You need to scroll down towards the bottom, October 1 1944, to see it. Thanks. Laurie