FWIW, one of the sessions I will be doing at the UG this year is on this subject.
In it, I will tell you how to use Tcl with Apache or IE. I also cover other aspects of interfacing Cloverleaf to a Web Server.
This session does not get into Cloverleaf as a cliet, i.e., http, etc but mostly into interfacing Cloverleaf with the server using TCP/IP and/or Fileset/Local.
Maybe its a good reason for you to come?