Question:

I have two search core results webpart. I set different scopes in each search core results webpart under Miscellaneous section.

When I search on a key word that two should produce different results with in that scope but both results are showing same. I have the managed scopes set properly. What could be wrong.
I need this as soon as possible. Thanks

Solution:

I hope below link will help you to customize.
One of the awesome presentation given by Richard (http://download.microsoft.com/documents/australia/sharepoint_conference/search/DEV11_SearchExtensibility_MikeFitz.pptx)

Customize SharePoint Search Rendering (http://www.keirgordon.com/post/Customize-SharePoint-Search-Rendering.aspx)