site categories / not displaying sites

Example: http://lux.wearepixel.co.uk/sample-page/

Hello, I'm having an issues trying to get my site's categories plugin to display the sites below the categories by default. I don't wish to have to click through to a category to list the sites. This must be possible as its shown within your purchase page.

I have tried all dropdown options within the settings and have even disabled all plugins and reverted back to a default Wordpress template. Please can you tell me where I am going wrong?

Thanks