We are have updated a pathology PC to Windows 7. Will this version of NIS-Elements F (scope camera) still be compatible or do we need to load something new?
Yes, it's compatible with Windows 7, but it will work only with Windows 7 x86 (32bit). There is no support for 64bit for F versions as specified on the official website of the developers.
You can check the following page for official system requirements: http://www.nikoninstruments.com/en_EU/Products/Software/NIS-Elements-Advanced-Research/Operating-Environment