A big thanks to Angel from Soothchat for making this possible, a new counter has been added to the board index of the forum which displays the names of everyone in the chat room.
It will work for both Java Chat and mIRC users. To join the chat room, you can either click 'Join Chat Room' or use mIRC with the server details listed.
The counter updates in real time, so what you see is exactly who's in there at the moment you are viewing it.