Try the following query:
CREATE TABLE IF NOT EXISTS `users` (
`user_id` int(8) NOT NULL AUTO_INCREMENT,
`user_name` varchar(30) NOT NULL,
`user_pass` varchar(255) NOT NULL,
`user_email` varchar(255) NOT NULL,
`user_date` datetime NOT NULL,
`user_level` int(8) NOT NULL,
PRIMARY KEY (`user_id`),
UNIQUE KEY `user_name_unique` (`user_name`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1 AUTO_INCREMENT=1 ;