ASP.net With AJAX Extender Problem in Production server

Hello..

I have used AJAX toolkit control extender in my site(ASP.net with C#).

When i uploaded my site to the production server it gives the error for ajax toolkit extender.

When i replaced the toolkit script manager with regular script manager the site is working fine but the extended control are not working.

I have contacted to the production server team they are saying we have already provided the facility for ajax toolkit.

How i can solve the problem...

Thanks in advance