Using referral script

I don’t know if this is the right place to ask my question, but I guess I will try.

I am trying to put a ‘referral script’ on my site.

I have put it at the bottom of this page:

http://choveveitzion.com/plumbing/is-there-a-leak-in-your-toilet/

The form looks fine. I am able to fill out the fields. And form validation seems to be working fine. So I think the Javascript I put into the header file seems to be working fine.

But every time I hit ‘submit’ I get the famous 404 error page.

There are two other files associated with this script:

Mime mail.inc

This I have uploaded to my Public_html file.

It is accessed by the php script with the following statement:

include “mime.mail.inc”;

Is this the correct address?

The other file is the php file:

process_referral.php

which I have added to all the php files of my theme.

It wouldn’t surprise me if my error is a stupid error as I don’t have experience using PHP or Java script.

Any helpers?

Thank you!