How to show the photo in the categories when you click on a topic???

if you can please help me. iam trying to have each topic in my posts show the photo like the main page does. check out http://iamhiphopnation.com

for example if you check out http://iamhiphopnation.com/category/celeb-mugshots/ it wont show the whole article & i would like it to show the photo like on the front page. is this possible???