I do not know if this was ever posted. I am going to give this a try.
http://www.hardcoreware.net/how-to-playstation-3-controller-64-bit-windows-7-vista/
http://www.hardcoreware.net/how-to-playstation-3-controller-64-bit-windows-7-vista/
Update! October 2011: We finally have a working OFFLINE version of MotionInJoy drivers! Unlike the archive they have offered, this one gives you a fully functional controller in local mode. Simply extract this file into your program files/motionjoy/ds3 folder, and local mode will work!
Update! November 2, 2010: The latest version of the PS3 USB driver is digitally signed! That means you no longer have to disable signature enforcement, or anything like that. I have rewritten the instructions below (because it’s still not as simple as you’d think).
One of our more popular blog posts this year has been the guide on how to use a PS3 controller in Windows Vista. Many thousands of people found that guide to be helpful, but unfortunately 64-bit users were left in the dark. Furthermore, the driver only offered basic functionality, and many of the PS3 controller’s features were missing. This includes Bluetooth connectivity, SixAxis motion detection, and even the rumble feature of DualShock 3.
Today, there is a solution for all these problems, thanks to the folks at MotionInJoy, based in ShenZhen China, just across the border from me. They have created a driver that works on all versions of Windows, including XP, Vista, and even Windows 7. There are versions for 32-bit x86 and 64-bit x64. Their English is a little choppy, so figuring out the exact method of installing the drivers may be confusing for some. Here’s an illustrated guide on how to install Windows drivers for your Playstation 3 controller: