Are you hosting your swfs on a local host like localhost? Be sure that you set up the links to your swfs correctly. Also, check your external_variables.txt with notepad++ and be sure that the links are your hamachi or other public ip, and not local. If all of those fail to work, then open client.php in htdocs with notepad++ and look to see if it asks for an ip link anywhere. If so, put your hamachi or any other public hosted IP address there. Let me know how it works for you.