Help! Error when trying to upgrade

[Essam]

Everytime I try to upgrade from 1.1.3 to Beta 3 I got this error:

<p>Altering user table</p>
<!-- ALTER TABLE user
	DROP biography,
	DROP canpost,
	CHANGE timezoneoffset timezoneoffset CHAR(4) NOT NULL -->

<p>Altering User Table</p>
<!-- ALTER TABLE user
	ADD buddylist MEDIUMTEXT NOT NULL -->

<p>Altering User Table</p>
<!-- ALTER TABLE user
	 -->


<!-- Database error in vBulletin Upgrade: Invalid SQL: ALTER TABLE user
	
mysql error: You have an error in your SQL syntax near '' at line 2
mysql error number: 1064
Date: Friday 09th of March 2001 07:51:39 PM
Script: /vb2_beta3/admin/upgrade1.php?step=8
Referer: [url]http://www.montada.com/vb2_beta3/admin/upgrade1.php?step=7[/url]
 -->
</td></tr></table>
<p>There seems to have been a slight problem with the database.
Please try again by pressing the refresh button in your browser.</p>An E-Mail has been dispatched to our <a href="mailto:[email protected]">Technical Staff</a>, who you can also contact if the problem persists.</p><p>We apologise for any inconvenience.</p>

I have already deleted ignore field from user table, but I still got this error.

any idea whats wrong?