login problems in w-admin/index.php

been on this issue for 8 hours. I have 3 other sites working just fine. when I login it goes to http://massageautoaccident.com/wordpress/wp-admin/

I get this error

Warning: require(/homepages/45/d135317839/htdocs/massage_auto_accident/wordpress/wp-admin/wordpress/wp-blog-header.php) [function.require]: failed to open stream: No such file or directory in /homepages/45/d135317839/htdocs/massage_auto_accident/wordpress/wp-admin/index.php on line 17

Fatal error: require() [function.require]: Failed opening required ‘/homepages/45/d135317839/htdocs/massage_auto_accident/wordpress/wp-admin/wordpress/wp-blog-header.php’ (include_path=’.:/usr/lib/php5′) in /homepages/45/d135317839/htdocs/massage_auto_accident/wordpress/wp-admin/index.php on line 17

I keep trying to change this file to redirect and it fails. here is the index.php file in wp-admin.

<?php
/**
* Front to the WordPress application. This file doesn’t do anything, but loads
* wp-blog-header.php which does and tells WordPress to load the theme.
*
* @package WordPress
*/

/**
* Tells WordPress to load the WordPress theme and output it.
*
* @var bool
*/
define(‘WP_USE_THEMES’, true);

/** Loads the WordPress Environment and Template */
require( dirname( __FILE__ ) . ‘/wordpress/wp-blog-header.php’ );

Any thoughts as to how to change this.