Hi,
open member.ctr [you have all control in one cluster], in Control Palette open submenu Refnum, and there is "TCP Network Connection Refnum", this place to cluster with data.
Or you can try OpenGoop example of TCP Server on page:
http://www.openg.org/tiki/tiki-index.php?page=EXAMPLE%20-%20TCP%20Server
and lock to data member "TCP Server Listener Info Cluster.ctl"
Have a nice day
PEto