It can be a bit tricky to sync. Follow the first 3 steps, and if it does not work, do as follow:
4/ turn off the wiimote (keeping "power" pressed)
5/ click "disconnect" on the object
6/ start from 1/
Sometime, even if you receive data in the P motion graph, it might still not be totally functional. A good way of checking is to tick the vibration box, if it vibrates than it's good (sorry about that).
The drawback is that you cannot track the 4 individual dots when using the IR camera. It will only gives you X and Y data.
To do this, you'll need to download OSCulator (freeware). This app will let u choose between the X and Y axis option (if using 2 IR leds as calibration, like the infrared sensor bar), and/or the Raw IR data of 4 tracked dots.
http://www.osculator.net/wiki/
