How to Insatall ?

Help,

When I execute "java Install" I get the following message:

D:\Jigsaw\Jigsaw\Jigsaw>java Install
                Jigsaw/2.0.1 setup.

updating D:\Jigsaw\Jigsaw\Jigsaw\config\http-server.props ... Exception in
threa
d "main" java.lang.NoClassDefFoundError: org/w3c/jigsaw/http/httpd
        at Install.install(Install.java:130)
        at Install.main(Install.java:204)

Do you know how to do to fix this problem?

Thanks,
Ken Avery
Ken.Avery@Compaq.com <mailto:Ken.Avery@Compaq.com> 

Note:
I am running Win98 and JDK 1.2.