404 page

hi 1. i have a .htaccess file in my root directory on unix hosting following is the code in .htaccess file ErrorDocument 404 /filenotfound.html the file filenotfound.html is also in the root directory as the htaccess file when i intentionally type a wrong url either if a misspell a file ex= http://domainname.com/filenam.html or a folder ex = http://domainname.com/100 to test if this is working filenotfound.html is not being called any reason why this is happening also the same thing with wamp on my local computer, i have a htaccess and also the filenotfound in d:/wamp/www however when i misspell the ulr of my localhost, i have noticed in the status bar that the page is being redirected to http://linkhelp.clients.google.com and i get a 404 from this website, how can i change this redirection 2. how do i access the php.ini and httpd.conf file from my cpanel, do i need to ask my hosting provider to make any changes or can i make these changes myself 3. after downloading putty and if i have wamp in d:/wamp/www how do i access mysql from the command prompt using putty on my local machine please advice thanks.