I installed the MS driver for the xbox360 wirelss receiver first from microsoft webpage here:
http://www.microsoft.com/hardware/download/download.aspx?category=Gaming&type=Gaming&sku=JR9-00001
I have Windows 7 64bit
I then plugged in my authentic brand new black wireless receiver (from Ebay) and it auto detected it but is seen as a 'unknown device' in device manager.
I proceeded with these steps to install the driver
Right click - on Unknown Device in Device Manager
Click - Update Driver Software
Click - Browse my computer for driver software
Click - Let me pick from a list of device drivers on my computer
In the window list, choose Microsoft Common Controller for Windows Class
Click Xbox 360 Wireless Receiver for Windows
Click Next (a warning pops up that it may not be suitable, PROCEED ANYWAY, Just Say YES)
Plug n Play will be happening during installation and it will now be in device manager as 'Microsoft Common Controller for Windows Class'
Sync up your controller, if your xbox 360 is near you and it has already been sync up with it, you will need unplug the xbox 360 during this process.
I tested my xbox 360 wireless racing wheel and played Dirt 2 with no problems
Oh ya baby!
This settled me down and I no longer have the desire to punch Bill Gates in the stomach if I would have seen him in the public square ;-)