An early test fit of the master parts, before a lot of the detailing:
http://www.up-ship.com/images/2007-03-04c.jpgStage 1 and 2 test fit of the engines:
http://www.up-ship.com/images/engines.jpgA test fit of parts for the stage 3 "shuttle":
http://www.up-ship.com/images/shuttle.jpg