Sharper Image Bluetooth USB dongle driver

Hello,

I purchased The Sharper Image Bluetooth KO500 speakers a while back which came with a USB Bluetooth Dongle V2.0+EDR. I've since lost the driver it came with and have tried their website and trust me its pointless. I've also tried google and its a complete mess to locate. If there's anyone here who can give me some info on where I can find the driver OR if there's a universal one I can use for my Windows XP laptop.