Events plugin excerpt needed in archive view

Hi I want either a short events post excerpt to show up on my main list of events - or for the location box to accept html code.
All I want to achieve is putting a link to an outside website on some events and I cant see how to do it. This is only for my archive list, not any other view.
here is my url
http://www.urbanoutdoorfitness.co.uk/ocr-events/
I also would like to include a sidebar on this view, but there is no option for this. Is it a theme limitation? Can I do it myself?

Thanks