java Install

GOT THIS:
"
Microsoft(R) Windows 98
   (C)Copyright Microsoft Corp 1981-1998.

C:\jigsaw_2_0_2\Jigsaw\Jigsaw>java Install
                Jigsaw/2.0.2 setup.

updating C:\jigsaw_2_0_2\Jigsaw\Jigsaw\config\http-server.props ... Exception in
 thread "main" java.lang.NoClassDefFoundError: org/w3c/jigsaw/http/httpd
        at Install.install(Install.java:132)
        at Install.main(Install.java:209)

C:\jigsaw_2_0_2\Jigsaw\Jigsaw>
"
WHAT'S WRONG? PLEASE HELP.
-dan