404 Page not found

Redeveloped my site from front page to Zen Cart.
Noticed in my Access Logs alot of hits from old site.
In current webmaster 404 Not found, I redirected to /page_not_found.php
Now google search engine give me an error:
Verification status: NOT VERIFIED
Last attempt May 8, 2007: We've detected that your 404 (file not found) error page returns a status of 200 (Success) in the header.

In page_not_found.php it reads
header("HTTP/1.1 301 Moved Permanently");
header("Location: index.php?main_page=page_not_found");

Google says:
To ensure that no one can take advantage of this configuration to view statistics to sites they don't own, we only verify sites that return a status of 404 in the header of 404 pages.

What do I need to make the change???

http://www.zen-cart.com/forum/showthread.php?t=39595&highlight=Verification+status

Kim,
thank you for the url on the same issue, but it did not fix my problem.
They were refering to an earlier version of Zen Cart not 1.3.7
1.3.7 starting on line 117 reads
if (!is_dir(DIR_WS_MODULES . 'pages/' . $_GET['main_page'])) {
if (MISSING_PAGE_CHECK == 'On' || MISSING_PAGE_CHECK == 'true') {
$_GET['main_page'] = 'index';
} elseif (MISSING_PAGE_CHECK == 'Page Not Found') {
header('HTTP/1.1 404 Not Found');
$_GET['main_page'] = 'page_not_found';

I inserted the following below, but did not work,
I believe the code already reads this issue

Around line 105 of includes/init_includes/init_santitize.php, find
if (!is_dir(DIR_WS_MODULES . 'pages/' . $_GET['main_page'])) {

add this line below it:
header('HTTP/1.1 404 Not Found');

Any suggustions?

Aha ... it was working fine in the case of a not-found-zen-cart-page, but not in the case of a not-found "other" page (outside of ZC).

To fix:
/includes/modules/pages/page_not_found/header_php.php

find this:// This should be first line of the script: $zco_notifier->notify('NOTIFY_HEADER_START_PAGE_NOT_FOUND');add this below it:```
// tell the browser that this page is showing as a result of a 404 error:
header('HTTP/1.1 404 Not Found');

Thank you Dr. Bytes,
At first when the problem occured I edited the following file in my root directory
page_not_found.php

I found:
header("HTTP/1.1 301 Moved Permanently");
header("Location: index.php?main_page=page_not_found");

Replaced with:
header("HTTP/1.0 404 Not Found");

Went to google and verified and she verified.

So, I applied your changes and uninstalled my changes above to the orginial

DrByte:

Aha ... it was working fine in the case of a not-found-zen-cart-page, but not in the case of a not-found "other" page (outside of ZC).

To fix:
/includes/modules/pages/page_not_found/header_php.php

find this:// This should be first line of the script: $zco_notifier->notify('NOTIFY_HEADER_START_PAGE_NOT_FOUND');add this below it:```
// tell the browser that this page is showing as a result of a 404 error:
header('HTTP/1.1 404 Not Found');

I will see in time by google for the fix.

Thanks again,

I had the exact same problem with my site. For anyone else who may find this thread in researching the same issue, Dr. Byte's suggestion (above) fixed it for me with no other changes applied.