I don't believe MVVM can be done in winforms(at least not without a lot of hacking). MVVM separates the view(your form) from the viewmodel(your logic).
The reason it can be done in WPF is because WPF allows loosely coupling the view from the viewmodel via databinding in xaml. This allows the ViewModel from not knowing anything about the view and still being able to function. This is a good article on MVVM basics, I believe that it will clear up several questions.
