Sharif,
Step 1. Use Chat Admin create those rooms.
Step 2. Create a HTML module just showing those rooms:
For example:
<a href="http://cutesoft.net/CuteSoft_Client/CuteChat/CH_MainForm.Aspx?Location=Lobby&LocationId=1">London </a>
<a href="http://cutesoft.net/CuteSoft_Client/CuteChat/CH_MainForm.Aspx?Location=Lobby&LocationId=2">Birmingham </a>
<a href="http://cutesoft.net/CuteSoft_Client/CuteChat/CH_MainForm.Aspx?Location=Lobby&LocationId=3">Surrey </a>
asp.net Chat http://cutesoft.net/ASP.NET+Chat/default.aspx
Web Messenger: http://cutesoft.net/Web-Messenger/default.aspx
asp.net wysiwyg editor: http://cutesoft.net/ASP.NET+WYSIWYG+Editor/default.aspx
asp wysiwyg html editor: http://cutesoft.net/ASP
asp.net Image Gallery: http://cutesoft.net/ASP.NET+Image+Gallery/default.aspx
Live Support: http://cutesoft.net/live-support/default.aspx