Hi Mike,
Most probably you can just directly install Bluesoleil.
However, what Bluesoleil version the dongle is using? Older versions of Bluesoleil may be difficult or unable to connect to the Wiimote.
As mentioned before, we do recommend our users to get a Bluetooth adaptor that uses the Microsoft Bluetooth stack that is sold by most of our resellers.
Regards,
Boon Jin