Firstly you need to connect your break out box to the Vid Out socket. The three colours stand for Video (Yellow), Left Sound (White) and Right Sound (Red). To connect this to the TV you will need a RCA omposite cable with multiple plugins on either end. This allows you to connect one side into the TV and the other into the PC.
I could only find this site with a 20ft RCA cable click here(FORMAL) it's under Cable Technology.
You could even get a RCA converter which allows you to plug it in to a scart socket. I could not find a site for this but i brought mine from Argos it was included in their connection kit.