(The email doesn't have to be the one associated with your live id)
Our promo code alias is having some problems. If you get a bounce on the email, you can go ahead and send an email through the contact page of this blog.
You will also need to create a liveid to use to login. You can do that at http://www.passport.com
Because the HealthVault beta is currently limited to the US, the liveID you use needs to have the region set to the US. You can do that by going to:
and looked at your Country/Region. If it isn't set to US, click on "Registered Information", and set your country/region to "United States".