applet classes not found

Pardon me for this silly question, but I don't find it in the archive. How can
I configure jigsaw to support applets. I constantly get "file not found" errors
like:

...
GET /applets/SpreadSheet.class HTTP/1.0
Connection: Keep-Alive
Date: Sat, 31 Oct 1998 02:47:55 GMT
Accept: image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, image/png, */*
Accept-Charset: iso-8859-1,*,utf-8
Accept-Encoding: gzip
Accept-Language: en
Host: localhost:8001
User-Agent: Mozilla/4.06 [en] (X11; I; Linux 2.0.35 i586)

HTTP/1.1 404 Not Found
Connection: keep-alive
Date: Sat, 31 Oct 1998 02:47:55 GMT
Content-Length: 204
Content-Type: text/html
Server: Jigsaw/2.0beta2
...

Most probably, I did something wrong when adding an indexer for *.class files?

TIA

-- Peter