The requested URL was not found

I tested in localhost, it works fine, but when i uploaded to my server site, i get this error, is there anything need to be changed when uploaded to server site?

Not Found
The requested URL /fckeditor/editor/fckeditor.html 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/2.2.8 (Unix) mod_ssl/2.2.8 OpenSSL/0.9.8b mod_auth_passthrough/2.1 mod_bwlimited/1.4 FrontPage/5.0.2.2635 Server at Port 80

my code:
<?php
$oFCKeditor = new FCKeditor('product_desc') ;
$oFCKeditor->Config['SkinPath'] = '/fckeditor/editor/skins/silver/';
$oFCKeditor->BasePath = '/fckeditor/' ;
$oFCKeditor->Value = '' ;
$oFCKeditor->Create() ;
?>