Getting Ads Between Posts… Newbie Question

I have the evolve theme and don’t have the slightest clue on how to get ads between my posts. I can get them in my side bar and in my footer by using a widget, but I can’t do that for in between posts.

This is my site:
http://thosewiseguys.com/

Any help would be greatly appreciated. I am basically starting from scratch trying to learn all of this stuff.