page_not_found / 404 - I dont want to use the ZC one....help

After looking at this all day I am starting to wind myself up!

So here is what I am trying to do. We have our own 404 error page that is quite complex. It checks for abuse then banns ips that are looking for admin files etc.

I want zen cart to use this custom .php 404 error file solely (not generate a page with template headers, page content etc) when a page is not found.

I am completely stuck!

Can anyone tell me where the code is in zen cart that dictates the page to load when a page is not found?

Any help at this point would be appreciated. :o)

We are on zc 1.5.1 and are using ceon uri mapping...... just for reference.

Thanks in advance
Dean

"includes/modules/pages/". do not have it in front of me, but think the name is page_not_found. Inside the not found page (folder) is a file labelled "header_php.php" which is called before the HTML templates are loaded. If based upon the request you do not want to show the usual 404 page, you can set a different error code and exit or use zen_redirect.