Default document

Hi,

I have two sites in IIS7. They both point to say C:\www

One site works on http://10.3.2.1 and the other one on http://10.3.2.1:7070

On Win 2000 I was able to set Default Document on one site to a.html and the other one b.html. However on IIS 7 when I set a.html it becomes a default document for both sites and when I change it to b.html it changes again on both sites.

If you know how to set it up - please let me know.

Thank you,

Igor