Hardcoreware posted a guide on getting the PS3 controller to work in Vista and Windows 7
This new guide explains how to get full control of the Playstation 3 controller in all versions of Windows - including 32-bit and 64-bit, XP, Vista, and Windows 7.Use a PS3 controller in 64 bit Windows Vista and 7
The illustrated guide will take you through all the steps, and in the end you will get a fully functional PS3 controller in any version of Windows you want - including Bluetooth connectivity, SixAxis control, and DualShock support.