Citrix Farm with no Terminal Services Licensing server.

I have a Citrix Presentation server 4 server farm with 4 2003 servers.  It's been up and running for about 4 years.  I have ~200 users accessing ~65 different published applications.  I am attempting to add another Citrix server to the mix to spread the load a little more.  I began installing PS4 and when prompted to enter the Terminal services Licensing server the one I enter does not work.  I start digging around and I cannot find a Terminal Services Licensing server on my domain anywhere.  In the past I think the TS license server needed to be a DC.  I looked at both of my local DC's and neither have a check mark next to Terminal Services Licensing in Add/Remove programs and neither are running the Terminal Services Licensing server.  I looked at the member server that is also acting as the Citrix license server (which was the one I thought was running TS licensing) but it was the same scenario.  I've checked all of the PS4 servers to see if possibly they were acting as the license server with no luck.  There have been no changes to the Citrix farm with regards to new servers or any modification of the configuration since it was installed.  In other words, no one uninstalled TS licensing which left me in a grace period or anything to that affect.  

My question: Is there any way to find who is servicing the TS licenses.  Obviously some TS license server somewhere on my domain is issuing these licenses.  From what I understand by default this info is stored in AD.  Is there anyway to extract it from AD?

Thanks for you help