http://forum.thegamecreators.com/?m=forum_view&t=98263&b=2
As far as i know he only got it to turn on the lights and vibrate i think, he stopped developing it though,he may be kind enough to give you the source to see how he did it.
I personally would love a plugin for DBPro to get the wiimote to work for it. Since people only need to buy a wiimote, a bluetooth dongle and bluesoleil(which i got free with my dongle).
Its annoying though to get the wiimote to work through C because you need to connect it to bluesoleil before running an application.
[Looking for work]