Install ATI legacy drivers on Windows 8

Same story as before, but on Windows 8 instead of 7. It has been a bit more difficult to install the ATI driver.

What I did:

Download the ATI Legacy drivers (x64 | x86). Install them, going all the way until they fail.
Download the ATI MobilityModder and install it.
When it is finished, copy the mobility modder patch to "C:\Program Files (x86)\MobilityDotNET".
Run the MobilityModder from the Start Menu, then select "C:\ATI\Support\10-02_legacy_vista32-64_dd_ccc" as your location, and let the Modder do its thing.
NOT SURE THIS IS NEEDED, CHECK ALTERNATIVE
- Open an elevated Command Prompt and type the following commands: bcdedit /set {current} testsigning on then bcdedit /set {current} nointegritychecks true
- Reboot
- Note this will display an annoying "Test Mode Windows 8" message in Desktop mode
- After all is done you can disable that stuff again (testsigning off and nointegritychecks false)
The above didn't work for me, or not quite, but this alternative did:
- Reboot in Disable Driver Signature Enforcement mode
  - Run "Advanced Startup" app in Windows 8
  - Choose to reboot the computer with Advanced Startup options enabled.
  - You’ll then be given the opportunity to boot into various troubleshooting modes, including Safe Mode, Debugging Mode and Disable Driver Signature Enforcement mode.
Finally, install the driver
- Choose "I've a Disk" or similar
- Browse the drivers path (x64 | x86)
- Install!