Anjaneai,
Before I started looking into your diagnostic approach, I visited vishu#13's approach. When I added a site by hand (versus my ISP's control panel approach), I have a working site.
The previous sites were all added by the control panel method when Open Blue Dragon was installed. OBD has been removed from this server and CF10 Server Standard has taken its place.
Do you know of anything that OBD might have left laying around that could be causing this problem?
RLS