Is this what you have in your settings.php you mean?
Here is what I have for mine in include/settings.php:
#Mysql Login info
define('DBTYPE','mysql');
define('DBHOST','localhost');
define('DBNAME','tickets');
define('DBUSER','');
define('DBPASS','');
#Table prefix
define('TABLE_PREFIX','ost_');
The one that seemed odd to me was your table prefix - ost_ is the default.