I've been trying different ways to install Snow Leopard on 4530s and your method was the easiest, fastest and the most practicable way to me, so thank you.
Right now everything is working surprisingly great! Only one strange issue I have:
When I reboot or just turn on the notebook, over the course of loading (Apple icon on center) a warning appears notifying "You need to restart your computer. Hold down the Power button until it turns off, then press the Power button again." and it freezes there.
I get this solved by resetting the BIOS to default, but I have to reset it every time I turn on the notebook. However when I reboot sometimes it works fine without showing that warning, but it always appears when it's turned off and I turn on the notebook.
I've upgraded to the latest BIOS version from F.09 to F.20, re-installed the OS again and nothing has been changed.
Any clue why is this happening?