Beginner- how to add a windows form and add a command button

I am an absolute beginner with Visual Studio.

In Visual Studio 2010, how do I bring up a windows form that command buttons and number input boxes can be added to.   Once a command button is on the form, how to I attach it to a particular subroutine so that the code is run when the button is pressed? 

I can run the sample program WHIZZY, but I have no idea how to edit or add any controls on the form.  When I click on Toolbox in Visual Studio it says there are no usable controls in this group.

Thanks for your help.