Acces BDD localhost

Bonjour,

bonjour, j ai suivi un tuto livre d'or, ma BDD fonctionne parfaitement cepedant quand j envois mon index.php et config.php voila ce qu il se passe...

quelqu un sait il m aider afin d'enfin pouvoir utiliser mon local et non plus mon hebergeur svpppppppp

merci

(ps: j utilise wamp)

index.php:

<?php

require "config.php";
mysql_connect(DB_SERVER,DB_LOGIN,DB_PASS);
mysql_select_db(DB_NAME);
mysql_query('SET NAMES '.DB_ENC);

if(!empty($_POST)){
	extract($_POST);
	$ip=$_SERVER["REMOTE_ADDR"];
	$message=htmlentities($message);
	$sql="INSERT INTO lo_messages (pseudo,mail,message,ip) VALUES ('$pseudo','$email','$message','$ip')";
	mysql_query($sql) or die('Erreur SQL !<br>'.$sql.'<br>'.mysql_error());
}

if(isset($_GET['suppr'])){
	$sql="DELETE FROM lo_messages WHERE id={$_GET['suppr']}";
	mysql_query($sql) or die('Erreur SQL !<br>'.$sql.'<br>'.mysql_error());
	echo "Message supprime";
}
?>

<form method="post" action="index.php">
	Nom :<input type="text" name="pseudo"/><br/>
	Mail :<input type="text" name="email"/><br />
	Message : <br/>
	<textarea name="message"></textarea><br/>
	<input type="submit" value="envoyer"/>
</form>

<?php
$sql="SELECT * FROM lo_messages";
$req= mysql_query($sql) or die('Erreur SQL !<br>'.$sql.'<br>'.mysql_error());
while($data=mysql_fetch_assoc($req)){
	echo "<strong>".$data["pseudo"]."</strong> ";
	echo '<a href="index.php?suppr='.$data["id"].'"> x </a><br />';
	echo "<p>".$data["message"]."</p>";
}	
mysql_close();
?>

config.php:

<?php

define("DB_SERVER","localhost");

define("DB_NAME","livreor");

define("DB_LOGIN","root");

define("DB_PASS","");

define("DB_ENC","UTF8");

?>

Warning: mysql_connect() [function.mysql-connect]: Access denied for user 'root'@'localhost' (using password: NO) in /home/a3672331/public_html/index.php on line 4
Warning: mysql_select_db() [function.mysql-select-db]: Access denied for user 'a3672331'@'localhost' (using password: NO) in /home/a3672331/public_html/index.php on line 5

Warning: mysql_select_db() [function.mysql-select-db]: A link to the server could not be established in /home/a3672331/public_html/index.php on line 5

Warning: mysql_query() [function.mysql-query]: Access denied for user 'a3672331'@'localhost' (using password: NO) in /home/a3672331/public_html/index.php on line 6

Warning: mysql_query() [function.mysql-query]: A link to the server could not be established in /home/a3672331/public_html/index.php on line 6