Windows Live Writer, problem setting it to work with a just created Windows Live Space account

I have just created a Windows Live Spaces at http://guerchele.spaces.live.com/ but when I try to configure it at Windows Live Writer, a message box titled "Login failed" pops up. I am sure the address is correct because if I click "View Weblog" link, my space opens in Internet Explorer without any problem and I carefully typed both username and password. Well, I guess it is a bug which occurs with Widows Live Space accounts just created. Anyway, it is a beta software, right?