Radiosity not showing in render.

Hi all,
Im new to Blenders features of radiosity and have managed to get them to work to a degree.
While in the main blender window (not the render window) the radiosity shows up on the mesh but as soon as i render it (a doesnt show the radiosity in the render and (b removes them when i go back to blenders main screen.

I was wondering if this has something to do with may settings or if I just cant do radiosity.