You can to go <http://www.mytravelco.com/> and get into the "cruise" section, then the 360 tour. Hopefully you can find Radiance on there and the cabin catagory and see for yourself. Hope the cabin is what you are looking for?
I am sailing with my family on March 9, 2002 and am booked in Category E-2. According to all the various folks I have talked to the higher category cabins (outside with balcony) all have one pullmen berth and one sofa bed for the 3rd and 4th passenger. We are disappointed but still looking forward to cruising on this beautiful vessel. Have fun.