You say it can display PTViewer Java tours too, where can I browse to to see?
Try Ben Kreunen’s spectacular series of Virtual Victoria tours: http://www.path.unimelb.edu.au/~bernardk/victoria/virtual/ These are spectacular panoramas, but do not use QuickTime. In the Safari or Firefox browser (or CubicNavigator in web view mode), these tours will display as embedded Java applets. In CubicNavigator’s OpenGL-based VR view, they’ll take on a whole new dimension.