I viewed the examples in Opera 6.0, build 1010, running on Windows 2000. The layer of cubes appears and when I right-click the image the context menu of Adobe SVG Viewer appears. This applies even to the *.svgz zipped version.
But the cubes do not bounce on mouse-over -- they just lie there.
In Internet Explorer 6.0 the cubes bounce just as in the Flash animation. What do I need to do to get Opera to show the animation correctly?
Adobe does not officially support Opera for the time being (see http://www.adobe.com/svg/indepth/faq.html#installother). You can also ask Adobe to support Opera on their feedback form at http://www.adobe.com/svg/feedback/bugreport.html. Sorry I don't have the knowledge to help you :(