if you are using tomcat and windows system, you could do like this:
(your disk):\jakarta-tomcat-4.0.6\webapps\(your directory)
and you could press
http//localhost:8080/(your directory)/servlet/(your servlets)
to play them, if they also could not displayed, you could ask
Martyn. I think you can get help from him.
Here is his E-mail add MartynOswin@Compuserve.com