Windows Live Security Center

> Does anyone know if the Windows Live Security Center program to do
> complete online computer scan is working with Vista? whenever I've tried
> I get the error message that the center is down for repairs or
> experiencing problems but when I use the same online scan using my desktop
> main machine, it's scans fine.
>
> I wasn't even sure if I should ask this question here or in their forums
> but I'll start here. If I should ask someone else, just point the way .
>
> TIA for your help............katy
>