Update: So I thought I'd try going with the Driver XDleader555 suggested here anyway and see what happened, it installed and after the restart everything looked like it was going okay, I was even able to install bluestack, something that wouldn't work before. but then when I tried to play videos in the netflix app I got an error. So I've gone back to the driver I had before.
I still can't install minecraft and bluestack became really buggy (as expected).
Another thing I noticed was that I got a little watermark in the lower right-hand corner:
Just in case someone can't see the image it says:
Windows 8 Pro Media Center
Build 9200I'm not sure if this is from using the driver or some sorta failsafe to do with upgrading to Win8 Media Center.
@XDleader555 Okay, Thanks!