1.try this link:http://www.easypano.com/virtual-tour-gallery.html can you view tours in this page?
2.can you tell me the exact build of your ie,firefox and chrome?
3.which is the verion of your flash player?
4.it is better that you can send us a link or the tour to us so that we can test it at our end and find a solution for you.you can upload your tours to www.mediafire.com ,then email me the download link,my email address is email@example.com.
The Virtual Tour Way