how to re install vb 4.0?

[championcycle]

when i try making a post or change styles this shows

Database error in vBulletin 4.0.2:

Invalid SQL:

SELECT
fd.thumbnail_dateline, fd.filesize, IF(fd.thumbnail_filesize > 0, 1, 0) AS hasthumbnail, fd.thumbnail_filesize,
a.dateline, a.state, a.attachmentid, a.counter, a.contentid, a.filename, a.userid, a.settings, a.displayorder,
at.contenttypes
FROM noidentd_attachment AS a
INNER JOIN noidentd_filedata AS fd ON (fd.filedataid = a.filedataid)
LEFT JOIN noidentd_attachmenttype AS at ON (at.extension = fd.extension)
WHERE
a.posthash = 'e86322520d7414b23f6e1c68638560e5'
AND
a.userid IN (48)
AND
a.contenttypeid = 1

ORDER BY a.contentid, a.displayorder;

MySQL Error : Unknown column 'a.displayorder' in 'field list'
Error Number : 1054
Request Date : Sunday, September 12th 2010 @ 06:33:16 PM
Error Date : Sunday, September 12th 2010 @ 06:33:16 PM
Script : http://www.ontariomotorcycle.ca/foru...newthread&f=92
Referrer : http://www.ontariomotorcycle.ca/foru...announcements/
IP Address : 70.52.224.167
Username : Rick
Classname : vB_Database
MySQL Version : 5.0.85

--------------- Added [DATE]1284316487[/DATE] at [TIME]1284316487[/TIME] ---------------

this all started when i tried to update the patch to 4.0.3 so i put my files back to the old version of 4.0.2 this is nuts still dosent work..

--------------- Added [DATE]1284316604[/DATE] at [TIME]1284316604[/TIME] ---------------

all i need is to make this work.. can i re install the vbulletin without the install file or something to make it work? i need my forumback up asap

--------------- Added [DATE]1284317170[/DATE] at [TIME]1284317170[/TIME] ---------------

nvm fixed it.... just ran install