I used b2 for a couple of years and when wordpress 1.1 beta came out I made the jump over. I have been totally slack about upgrading but I'm trying to now. The wiki talkes about upgrading from version 1.2 to 1.5 so I downloaded 1.2 from sourceforge and tried that. My install of 1.2 (pointed at the old database) now says -
Database error: [Unknown column 'post_date_gmt' in 'where clause']
SELECT DISTINCT * FROM b2posts WHERE 1=1 AND post_date_gmt <= '2005-07-11 05:45:59' AND (post_status = "publish") GROUP BY b2posts.
What steps did I take? I backed everything up, deleted all the files, installed 1.2, fixed wp-config.php, logged in and fixed the permalinks. Tried the same with 1.5 and got a very similar error message.
Can anyone offer advice?