Re: School Network-Increased secruity
From those screenshots, you haven't proved you've accessed anything.
The Group Policy Editor would be full with a big tree system to change settings, but what you show us is fairly standard - the program itself will load, but the window contents won't. Did you get an error message from the MMC when you started it, saying something like access to this snapin has been disabled via policy?
I'm afraid you haven't proved to us you can do this. Just looks to me like you can view the stuff, I'm afraid.
Master of common sense. If you don't like it, stop reading.