NT4 does not have built-in tools like terminal services. You can use tools like PcAnywhere or VNC. Free version of VNC: http://www.realvnc.com/download.html
I usually use VNC (Vitual Network Connection) U can get it free at: http://ultravnc.sourceforge.net/downloads.html OR use PC Anywhere (symantec product - not free). RECOMMEND: vnc is best choice