how to upgrade ajaxcontroltoolkit version from 3.0.20820.0 to version 3.5.40412.2
<p>i am working in webapplication in asp.net using c#.
I have a problem that currently i am using ajaxcontroltoolkit version 3.0.20820.0
but in this toolkit i don't have Editor Ajax control so i want to upgrade it with new version ajaxcontroltoolkit version 3.5.40412.2</p>

<p>When i upgrade it then my old ajax control is not working like validatorcalloutextender and requiredfieldvalidator etc.</p>

<p>so please tell me how can i upgrade ajaxcontroltoolkit version from 3.0.20820.0 to version 3.5.40412.2 </p>

<p>i also use  in web.config file but not successfull.</p>

<p>please help as soon as possible because i am in the mid</p>
