Ajax Control Toolkit -> AjaxFileUpload and formView

VS2010 .NET 4.0

I installed the AJAX control tooklit july 2012 4.0.30319 via nuGet. I read the followign post and deployed this in my application.

http://stephenwalther.com/archive/2012/05/01/ajax-control-toolkit-may-2012-release.aspx

The stand alone control as shown in the above example works fine but I have this in the EditTemplate of a form view. The control appears and I can select a file to upload but the progress bar stays at 0% and gets red: error!!!.

I have battled enough to install the control and compile the apps ... I did see there are issues with the AjaxFileUpload.

All advise is gratefully accepted:

Can I still use this control in form view. I need this in the InsertTemplate also !.

What are the painful steps to downgrade the ToolKit.

Thanks in advance