Adding extra fields in new user notification emails

Hi,

I’m using WP Registration Pro in my Enfold theme. Since their support is really non existing, I hope you guys can help me out because it’s kinda urgent. In the new user notification email to the Admin I would like to have all the fields displayed that have to be filled out during registration. To achieve this, I tried to add the following statment as a test in the child functions.php but that doesn’t work.

if ( !function_exists('wp_new_user_notification') ) {
        function wp_new_user_notification( $user_id, $plaintext_pass = '' ) {
            $user = new WP_User($user_id);
            $user_login = stripslashes($user->user_login);
            $user_email = stripslashes($user->user_email);
            $user_first_name = get_user_meta( $user_id, 'first_name', true );
            $user_last_name = get_user_meta( $user_id, 'last_name', true );
            $fullname = ($user_first_name." ". $user_last_name);

            // Admin Notification Email
            $message  = sprintf(__('New user registration on your website %s:'), get_option('blogname')) . "\r\n\r\n";
            $message .= sprintf(__('Username: %s'), $user_login) . "\r\n\r\n";
            $message .= sprintf(__('E-mail: %s'), $user_email) . "\r\n";
            $message .= sprintf(__('Full Name: %s'), $fullname) . "\r\n";
            @wp_mail(get_option('admin_email'), sprintf(__('%s - New User Registration'), get_option('blogname')), $message);

            if ( empty($plaintext_pass) )
            return;

            // Users Notification Email
            $message = "Hi $fullname," . "\r\n\r\n";
            $message .= sprintf(__("Thanks for registering your details at %s! website, your user login details are below:"), get_option('blogname')) . "\r\n\r\n";

            $message .= wp_login_url() . "\r\n";
            $message .= sprintf(__('Username: %s'), $user_login). "\r\n";
            $message .= sprintf(__('Password: %s'), $plaintext_pass). "\r\n\r\n";

            $message .= sprintf(__('If you have any questions or problems, please contact us at %s.'), get_option('admin_email')) . "\r\n\r\n";

            $message .= __('Thank you,'). "\r\n\r\n";
            $message .= get_option('blogname'). "\r\n";
            $message .= get_option('home'). "\r\n\r\n";

            wp_mail($user_email, sprintf(__('%s - Username & Password'), get_option('blogname')), $message);

        }
}

Any tips on how to solve this? I’m more than happy to give you admin access.

Thanks in advance!