Excellent news Andy, let us know when to get it.
If you've already installed the RadarBox 2009 software, you won't need to reinstall this when you get your box. Just plug it in to a USB port then make sure you "point" to the RB drivers in the /AirNav RadarBox 2009/Drivers directory and you'll be in business.
Don't let Windows install the drivers automatically as it'll run off and do it's own thing!