We have it working, the IR's arrived last night and the electonics were hooked up in the pen today.
Connecting the wii remote to the bluetooth is a case of pressing the 1 and 2 button on the remote at the same time to put the remote into discovery mode.
Needed to install .net framework 3.5 to get the wiiwhiteboard software working,
Students have been having fun with it, thoufh we found the whiteboard that we have it too reflective for it to be used like a normal pen, instead we turned the marker around have been using in reverse with great response.
Other issues have been the wii turning itself off after 10 minutes of inactivity.
This requires you to re sync up the bluetooth and restart the wii whiteboard software after it has crashed out.
Also where the wii is placed, at the moment it is on top of the datashow, which is in a difficult place to get.
Maybe using velcro we could make something up that connects to the light fitting that is near the board to be able to hooked it up.
Students have been getting up and using it as I have had google earth running to show them what they can do, they then ask how is this working, the cannot see the other two interactive whiteboards within the school. I say I am using a wii remote they don't believe me, as they cannot see the wii. Thats one of the things I like about this, it makes them think about what they can do with accessories at home, why are they just used with one device, why not many devices.
Will look at creating another pen that we can use in reverse.