Amongst the files you downloaded there are driver files. You need to install the ones specific to your version of windows.
HOWEVER, what they've not bothered to mention on that site is that forcing a game to run on unsupported and underpowered hardware can cause serious damage to your system as can replacing certain files and using hacked files of the sort involved.
Anything you do is at your own risk. If your system burns out from the stress, Bethesda won't be responsible as your using a completely unsupported workaround.