After deep searching and much reading, I could not find my way to work on Expression Blend with WPF in Visual Studio 2010. I had already installed Expression Blend 3.0 and 4.0 from the following links and restarted VS 2010 and I still cannot open Blend or see the "Open in Expression Blend" option when I right click the XAML file in VS explorer.
https://www.microsoft.com/en-my/download/details.aspx?id=10801
https://www.microsoft.com/en-my/download/details.aspx?id=22829
I would appreciate it if someone out there can provide clear steps on how to install Blend to make it work on VS 2010.