Unless you are 100% sure that your wiimote is not a knock-off wiimote, I suggest you to try another bt stack like bluesoleil (be sure to try the latest version). Also, are you getting any feedback on buttons and other sensors in the Recording window of the wiimote plugin config window?
Rig
*Corei5 3570K *Nvidia 9800GT 1GB DDR3
*Motherboard Asus P8H77M-PRO *Win7 x64
*RAM 8GB DDR3(1600)