I don't see what bluetooth hardware you used. Some need drivers and I rarely install anything but the driver. Those ezconnect things usually get in the way.

Windows 7 is really great in that the Microsoft Bluetooth "Stack" is surprisingly one of the best. Here's the cheap things I use that just works without adding drivers!
http://www.geeks.com/details.asp?invtid=USB06C&cat=NET
http://www.amazon.com/Bluetooth-USB-Micro-Adapter-Dongle/dp/B001EBE1LI

At under 2 bucks I gifted away any adapter that needed a driver.
Bob