Visual Studio :: Adding AJAX Toolkit Controls?

My group has been working on Visual Basic Web application for a very long time. Everytime a new Visual Studio Release comes out we upgraded this application to the current release of visual studio and ASP.NET. Right now we have this application working in visual studio 8 and ASP.NET 2.0.

Recently I downloaded the AJAX tool kit to my system.I was successful loading the AJAX tool kit controls to a newly created ASP.NET Web Application and performed some experiments developing Web pages using AJAX.Now I want perform experiments that test the AJAX script manager to this old application. When I clicked on the visual studio 8 project file to this application the AJAX Extenter Controls and the AJX Toolkit controls are not listed in the visual studio toolkit. In fact the Visual Studio Control Tool kit does not show the tabs where the AJAX Extender and AJAX toolkit controls were loaded. I tried to add a new AJAX Extender and AJAX Toolkit Tab Pages to the Visualo Studio web control toolkit but visua studio reports back that the AJAX Extender and AJAX Toolkit tab Pages are loaded. However these tab pages are not displayed in the Visual Studio Tool Kit

To add AJAX Extender and Toolkit tab pages I must click the Choose Items application and press the reset button on the Choose Items Dialog Box. After this action I can add the Ajax Extender and AJAX Toolkit Control Tab Pages to the Visual studio Control Toolkit. However I cannot add AJAX Extender controls found in the System.Web.Ajax.dll file into the toolkit. After I select the System.Web.Ajax.dll file and press the choose Item OK button none of the controls foun in the System.Web.Ajax.dll file. Same is true with the controls found in the AJAXControlToolkit.dll file too