Animation using Expression Blend with Visual Studio 2008

I need to create an animation using silverlight and then publishing it so that i can view it at a browser, after which i will add the page into my web portal in c# as an introductory page before entering my homepage.

I am clueless and this is my first time using silverlight expression blend. So i have followed the tutorial over here…

http://www.kirupa.com/blend_silverlight/creating_animation_silverlight2_pg3.htm

my attempt to Right-click on the Solution node and select Edit in Visual Studio at expression failed and a pop-up window with the following message showed.

“cannot edit in visual studio. the method or operation is not implemented”

how do i solve this problem and does anyone have any guide for me on how to create a simple walk cycle in Expression blend 3 and publishing in on a web browser.

any help will be appreciated! Thank you!