$db = mysql_connect("localhost", "root");
mysql_select_db("mysql",$db);
$result = mysql_query("CREATE TABLE news (id INT NOT NULL AUTO_INCREMENT,
create_date DATE NOT NULL,
news_title LONGTEXT NOT NULL,
description LONGTEXT NOT NULL,
mt INT DEFAULT '0' NOT NULL,
PRIMARY KEY (id)",$db);

у тебя нет таблиц