We have updated the GMCP for communication so that it actually works. Here is my trigger for putting all communication into it's own window for CMUD.
<trigger type="GMCP" priority="1540" newline="false" id="154">
<value>#WIN Communication %gmcp.Comm.Channel.Text.text</value>
Info that is sent:
%gmcp.Comm.Channel.Text.channel - This is the title on the channel such as Antioch, Market, Newbie, Say, Tell, etc
%gmcp.Comm.Channel.Text.talker - Who is talking - Jeremy, Garryn, etc
%gmcp.Comm.Channel.Text.text - The whole unedited line.