Ron, windows live is where the problem lies. Not with this site. You are already logged on to this site. Go to your profile page and change your email address to a normal one. Then when you receive email notification of a reply to a post, you simply click on it, it takes you to the post, and you type a reply. It really is that simple. No Activation code etc. Well….as long as you don’t use Windows live that is. 
Vinnie