Blog post and showing blog photo or video content

I think this is simple or something that I have missed, but when i put a picture or video or slider into a post, it does not show up on the on the blog page with the shortened article. I see that your page does that and I am not sure if I am missing something.

http://hb-themes.com/themes/highend_wp/blog/

this is what I am trying to do. thanks

tom D