Duplicate image on post and too small

I want the page too look like your example here: [url=http://demo.onedesigns.com/minimatica/?p=196]template page[/url] and yet mine has the small image that is the featured image and the main image really big with the who it’s written by to the left. I would like it underneath as in your example. Here is how it looks when I install it: [url=http://eloine.com/pad/?p=1503]my example[/url]