Every time I try to make a webpage with one of my scenarios, I get ClassNotFound Greenfoot.ScenarioViewer.class. I get this with any of my scenarios, even though they work on the Greenfoot site, and as .jar files on my computer
Sounds like a specific jar you need is not being bundled with your jar file, I have not tried to make any greenfoot games available on a different site. I have to try and see what happens. You could download the ar that is in your scenario and put that somewhere, could even lft the needed HTML from the scenario page as well.