Display error with integration in Joomla

I'm using the latest Puno component for integration into Joomla and it works well apart from a display error when wrapping the forum in my template (see link). I appears that the right hand side of the body table is 'running over'

http://www.surfandsnackshack.co.uk/cms/ … c&id=1

This displays no matter what skin I use or what platform/browser (mac/pc)

Any help would be appreciated.

Adrian