Also Error Corrector will send you an email with a complete report of the broken link, that includes information such as date/time, the IP address of the user, the browser user agent of the user, the URL of the page that was not found, and the refferer page that has the broken link.

You can easily customize the script and change to what email address the reports will be sent as well as the subject of the email and content of the 404 replacement page.

Error Corrector is a  very easy to install script, you only upload it and modify your .htaccess file, complete instructions when you buy. Alternatively you can have us install this for you.

NOTE:
This is licensed for one installation on a single url. If you intend using this on more than one site you will need to purcahse a copy for each.