hello ive just tried to install wish list in to my new installation of zencart and imgetting an error message this is it

Not Found

The requested URL /zcadmin/wishlists.php was not found on this server.

Additionally, a 404 Not Found error was encountered while trying to use an ErrorDocument to handle the request.

Apache/2.2.19 (Unix) mod_ssl/2.2.19 OpenSSL/0.9.8e-fips-rhel5 mod_auth_passthrough/2.1 mod_bwlimited/1.4 FrontPage/5.0.2.2635 Server at pleasure-chest.co.uk Port 80

can any one help thanks