[ehsan2]

Hi
I tried to install this hack, but after install I see this message in admincp:

Database error in vBulletin 3.8.5:

Invalid SQL:

SELECT *
FROM thread AS thread
WHERE force_read = 1
ORDER BY force_read_order ASC;

MySQL Error : Unknown column 'force_read' in 'where clause'
Error Number : 1054
Request Date : Thursday, May 26th 2011 @ 10:56:55 AM
Error Date : Thursday, May 26th 2011 @ 10:56:55 AM
Script : http://******/admincp/force_read_thread.php
Referrer : http://*****/admincp/index.php?do=nav
IP Address : 94.****
Username : P***
Classname : v_Database
MySQL Version : 5.0.91-community

what is wrong with that? what should I do?
my vB version: 3.8.5