Hi Moose_Calgary, thank you very much for your response.
I went over my installation method and there had been some minor issues with my device manager.
Previously, when I had uninstalled my R9 295X display adapter, it had completely got rid of that drop down menu (no display adapter section) so I wasn't able to install any display adapter, or view any pre-existing ones. I re-installed Catalyst Manager which then brought back the display adapter secion, showing AMD RADEON R9 295X driver. I then followed your instructions and then picked from a list of device drivers on my computer, which showed 'Microsoft Basic Display Adapter'. Continuing on, I did as you said and It worked! Currently it's stating it's a AMD Radeon r9 200 Series, driver version 14.502 (Previously 14.301). Is yours similar?
I'm hoping the updated Bootcamp Assistant would include the 15.20... driver version.
Thanks again.