It is now resulting in the top positions for the search - across ALL datacenter c-blocks!
it has not effected the main issue - TRAFFIC!
Something does not compute here. Do you also see the same position on regular Google search? Is it there at different times of the day?
If so, does a click on that link really go to your site every time? If not, there are some DNS cache poisoning exploits that might be in play (a site search on DNS cache poisoning will turn up some good threads).