I will take a shot at this at what I think you are asking.
The USB connector you also see in there is to the EHC, electrical harness connector. It also has some software in it too "SmartLink III" and it is propriety by BDM also. This is for all of your hand controls, brakes, lights and stuff. You should have lights on it that you can troubleshoot with. This is for the dealers. I do not know off any software that is for sale to the public but I am not sure.
Did BDM change something in 08?
Seeing how your bike is a EFI, if you are wanting to see the alarms on your bike for the Engine Light, you need to hook up to the VFI module which has a serial connection on the module itself. Perhaps it has changed, I don"t know.
Here is a link to the VFI module and the interface on it which is what I am talking about.
When you connect here, you need to use the Pro Tune II software by S&S to read the alarm. The actual map and software here is also proprietary but just a bastardized version of the Pro Tune II software. It calls for a certain box file to be loaded.
VARIABLE FUEL INJECTION (VFI) MODULE
Neil in Tenn