Mysql Connection Error

Plese help me my friends,
i have this problem my guestbook,

Warning: mysql_connect(): Access denied for user: 'user@localhost.localdomain' (Using password: YES) in /home/aymet/domains/yourdomain.com/public_html/commentbook/lib/mysql.class.php on line 30
Connection Error

i don't this problem.
my mysql.class.php on line is,

$this->conn_id = mysql_connect($this->db['host'].":".$this->port,$this->db['user'],$this->db['pass']);

can you help me?
thank you

Yea you need to set up a database then put the needed information in your config.php file.

Do you have a database? Is the information you supplied in the config file for the database correct?