You'll need to get a JRE or JDK. There is an excellent list at http://java.tqn.com/msub2.htm. Once you have it, go to the netresults directory of the CD-ROM, and run
jre -mx16m -cp . -ms8m itm.nr.serve.NRServer
If you are having any problems running the server, please:
jre -mx16m -cp . -ms8m itm.nr.serve.NRServer +ds +es +vs
for maximum debugging information before contacting us.