Uploading files fails

[internet54]

For the file upload issue, it is this code that breaks it.

Code:

if (basename($_SERVER['PHP_SELF']) == 'upload-ajax.php') {
    die('You cannot load this page directly.');
}

I can delete that code and replace it with a .htaccess file restriction and it works like a charm.
The problem with that is that newbies would have an issue trying to figure it out.