#1 A Database Error Occurred

[Dan Smith]

Tank Auth v1.0.8
CodeIgniter v2.0.0

I just installed Tank Auth, and got this error when using the included welcome page...

A Database Error Occurred
Error Number: 1364
Field 'user_data' doesn't have a default value
INSERT INTO `ci_sessions` (`session_id`, `ip_address`, `user_agent`, `last_activity`) VALUES ('0cd51c081f83f4f1ad57f4830a94c7cc', '0.0.0.0', 'Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US; rv', 1296785684)
Filename: C:\inetpub\wwwroot\ci\system\database\DB_driver.php
Line Number: 330

Is this due to a change in CodeIgniter v2.0.0?