I'm a bit stuck here...
In the chat.tmpl file I'm not sure what goes here:
<!-- PASTE THE JAVA SCRIPT FOR YOUR CHATROOM HERE -->
<!-- You may need to alter the "room" number -->
<!-- Signup for Free or Paid Chatroom at
www.raidersoft.com -->
<applet
codebase="http://client.sigmachat.com/current/"
code="Client.class" archive="scclient_en.zip"
width=600 height=350 MAYSCRIPT>
<param name="room" value="40462">
<param name="cabbase" value="scclient_en.cab">
<param name="username" value="$Username">
<param name="autologin" value="yes">
</applet>