No plugin with Safari..

hello all,

just installed and configured this plugin, but guests cannot see it…
this is the shortcode i use
[quick-chat height=”600″ room=”default” userlist=”1″ userlist_position=”right” smilies=”1″ send_button=”1″ loggedin_visible=”1″ guests_visible=”1″ avatars=”1″ counter=”1″]

this is my site: http://www.thessradio.net/chat/

The page I need help with: [log in to see the link]