Windows 2000 Terminal Server

We are currently running Windows 2000 Server. I know that Windows 2000 has Terminal Server built it. I want to add this function for a new software package we are getting ready to install. I need this done prior to installation so I don't have to go around to every computer. Can this be done without messing up my current network settings or the files that are on the server. I am not willing to jeopordize the files on the server for this function. Any ideas.