Terminal Services

My network consist of one W2KS one W2K client and two XP clients. I use my W2K client to control it all. I have TS install on my server and I have TS client on my W2K. Heres my Problem when I start my TS on W2K I can see the server an logon to it but I can’t view the XP clients it only gives me the available severs and I want to be able to control the clients from my W2K desktop

I know XP comes with a single liecenes and have enable them. I have reseach my problem on M$ but no such luck what am I over looking. PLEASE HELP!!