Issue: SQL error when I click on a new wiki entry

Invalid SQL:

			SELECT rev.userid, rev.dateline AS dateadded, rev.ipaddress,
				user.username, user.usergroupid, user.membergroupids,
				user.email, user.homepage,
				IF(user.displaygroupid > 0, user.displaygroupid, user.usergroupid) AS displaygroupid
				
			FROM vb_vault_revision AS rev
			LEFT JOIN vb_user AS user ON (user.userid = rev.userid)
			
			WHERE rev.threadid = 52449
				AND rev.pending = 0
			GROUP BY rev.userid	
			ORDER BY dateadded ASC;

MySQL Error   : Unknown column 'rev.ipaddress' in 'field list'
Error Number  : 1054
Request Date  : Wednesday, February 4th 2009 @ 03:34:30 AM
Error Date    : Wednesday, February 4th 2009 @ 03:34:31 AM
Script        : hxxp://xxx.com/forum/wiki.php?name=Default::Search
Referrer      : hxxp://xxx.com/forum/forumdisplay.php?f=75
IP Address    : 999.181.212.71
Username      : admin
Classname     : vB_Database
MySQL Version : 5.0.37