Step 1:
- Double click folder "1"
- Right click "royal.inf", and click "Install"
- Window should prompt you to restart, do so

Step 2:
- Doubt click folder "2"
- Double click your copy of Vista
- Wait for cmd to go through two windows
- Hit ok/enter for both windows

And that should be it, check by right clicking My Computer and checking it out.

Enjoy ;)