AJAXExtended control not working properly

i am using ASP.NET 3.5 with c#.i have downloaded AJAX control toolkit from codeplex and install it accordingly.i can seeit in my toolbox and also in bin directory of my solution explorer.i had done three different programming using AnimationExtender,AlwaysVisibleControlExtender and AutoCompleteExtender but none of these are working. when i run these,i get page done with error symbol at bottom of running page and my extended control action is not performing anything.what i am doing wrong please guide me.i am attaching two code.