Imbalance 2 theme

Hello,
I’ve just got up & running using the ‘Imbalance 2’ for WordPress template.
The main reason I was attracted to it was the way it displays images of various sizes in a simple gallery format, like this:
http://wpshower.com/demo/?theme=imbalance2

However, I can’t seem to get beyond the stage of it just displaying post-links, which then have to be clicked on to view the image:
http://www.geofftaylor.info/

Can anyone tell me how to remedy this please?
Many thanks,
Geoff.