The page has a space in the url, so when you try
to view it with Netscape, Netscape doesn't make
the connection that it's a space -- it thinks that
it's the end of the file name. So instead of
looking for "Fushigi Yugi.htm", it looks for
"Fushigi" and can't find it. Thus 404 error ;).
To see it, you can either copy the link into MSIE
(which will correctly read spaces in urls), or go