Problem with Microsoft Bluetooth notebook mouse 5000 in Vista

I have tried everything so far, and nothing helps.
I have installed the IntelliPoint 6.2, but it doesn't work. My Sony Vaio Vista recognizes the devices, but I can’t move it or use it at all. When I go to its properties and click on Buttons the following message appears:
Some mouse settings might not work until you connect a Microsoft mouse to a USB port on your computer or set up a Microsoft mouse that uses Bluetooth technology.
I already tried to configure a Bluetooth device on a Windows-based computer.And my computer recognizes this mouse, and tells me that the recognition was successfully completed, but immediately afterwards a window pops up saying:
New Hardware found Windows needs to install controller software for unknown device
later, or don’t show this message again.
I have tried all but none work. When I choose the first one (which is the only one that continues my process) it lasts about 20 seconds when a new window appears saying:
Then some longer explanation is also in this window saying something about the device missing a necessary entry.
Any ideas please?
