I know on their video we noticed that the lightsabers looked 04-ish in the Star Wars clip, but what about this picture from Empire? Are these the original lightsabers? I believe they were redone on the blu ray, but I don't own it so I can't check.
http://www.rmwusa.com/
On their website at the top several images cycle through and one is of Luke and Vader in their Bespin duel.