If the above Java applet does not work, you can also try the new JavaScript-only <a href="http://novnc.com"<noVNC</a> viewer. You will need a HTML5-capable browser though.
If the above Java applet does not work, you can also try the new JavaScript-only <a href="http://kanaka.github.com/noVNC/">noVNC</a> viewer. You will need a HTML5-capable browser though.
<a href="novnc/vnc_auto.html?host=$HOST&port=$PORT&true_color=1">Click here to connect using noVNC.</a>