I have two different host name for example http://contosoold and http://contosonew in content source.
Now i had created a scope to include results from "hotname=http://contosoold.com/".
In the search results page i have edited the core search webpart and given the scope name.But still i am able to see the results from both "contosoold" and "contosonew" site.
Please let me know if i am missing some step.
Thanks,
Sudan