That's the site where I learned how to do it. I just went with the first instructions, the Freedom VM, and it all worked fine though I have a Core I7 based system. You can use the same client on your PC to connect to both the local game server or a public game server, just by setting up the correct shortcut links.
The bottom line is that by now, thousands have the game running on their own PC's and it will always be out there. It can no longer be stopped. NC Soft could pay one of its lawyers to draft a comprehensive Cease and Desist letter to every public server host that pops up out of this, but it will cost them real time and money to actually enforce that should those letters go ignored. And since they're not making a profit off the game right now, they gain nothing, so it would most likely not be worth it.
We won.