I found a blog posted that states it maybe possible to filter the list of computers in RWW. I read the article but I am afraid I fully grasp what they are referring to. The selection of text that I am referring to is quoted below.
"In order for workstation RDP links to be exposed, there must be at least one XP workstation running with Remote Desktop Administration enabled. And only those machines with RDA enabled will show up in the list of client machines that can be connected to from RWW. In order for the application-sharing servers link to be exposed, the following criteria must be met:"
It almost seems like there is separate security that is monitoring and handling the management of RDP links? MOM? SMS?