DB_Session not working! CI 2.0.2

[eluser]InsiteFX[/eluser]
For one the session databse table is incorrect there has been a change to it but the documentation has not been updated!

Code:

-- --------------------------------------------------------------

--
-- Table structure for CodeIgniter ci_sessions.
--

DROP TABLE IF EXISTS `ci_sessions`;

CREATE TABLE IF NOT EXISTS  `ci_sessions` (
  `session_id`    varchar(40)           DEFAULT '0' NOT NULL,
  `ip_address`    varchar(16)           DEFAULT '0' NOT NULL,
  `user_agent`    varchar(120)                      NOT NULL,
  `last_activity` int(10)      unsigned DEFAULT 0   NOT NULL,
  `user_data`     text,
  PRIMARY KEY (`session_id`)
) ENGINE=MyISAM DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci ;

-- -------------------------------------------------------------
--  `user_data` text,       COMMENT - maximum length of 65535 characters.
--  `user_data` mediumtext, COMMENT - maximum length of 16777215 characters.
--  `user_data` longtext,   COMMENT - maximum length of 4294967295 characters.

InsiteFX