I am not a PHP guy, but looking over the file, I don't see that sort of problem:
<?php
/************************************************************************/
/* ATutor */
/************************************************************************/
/* Copyright (c) 2002-2006 by Greg Gay, Joel Kronenberg, Heidi Hazelton */
/* http://atutor.ca */
/* */
/* This program is free software. You can redistribute it and/or */
/* modify it under the terms of the GNU General Public License */
/* as published by the Free Software Foundation. */
/************************************************************************/
/* This file was generated by the ATutor 1.5.2 installation script. */
/* File generated 2006-02-03 14:02:05 */
/************************************************************************/
/************************************************************************/
/* the database user name */
define('DB_USER', 'xxxxxxxxxx');
/* the database password */
define('DB_PASSWORD', 'xxxxxxxxxx');
/* the database host */
define('DB_HOST', 'MySQL.learningpeaks.com');
/* the database tcp/ip port */
define('DB_PORT', '3306');
/* the database name */
define('DB_NAME', 'xlearningpeaks-atutor');
/* The prefix to add to table names to avoid conflicts with existing */
/* tables. Default: AT_ */
define('TABLE_PREFIX', 'AT_');
/* Where the course content files are located. This includes all file */
/* manager and imported files. If security is a concern, it is */
/* recommended that the content directory be moved outside of the web */
/* accessible area. */
define('AT_CONTENT_DIR', '/big/dom/xlearningpeaks/www/ATutor/content/');
/* Whether or not to use the default php.ini SMTP settings. */
/* If false, then mail will try to be sent using sendmail. */
define('MAIL_USE_SMTP', FALSE);
/* Whether or not to use the AT_CONTENT_DIR as a protected directory. */
/* If set to FALSE then the content directory will be hard coded */
/* to ATutor_install_dir/content/ and AT_CONTENT_DIR will be ignored. */
/* This option is used for compatability with IIS and Apache 2. */
define('AT_FORCE_GET_FILE', TRUE);
/* DO NOT ALTER THIS LAST LINE */
define('AT_INSTALL', TRUE);
?>