Thanks you Dev team
The TrackIR mode works with FreeTrack 2.1
The advanged of the Freetrack is that the software is free, all you have to provide is a decent Webcam, that does allow you to disable auto-exposure. I'm using a Mircosoft VX1000. The other part you have to do is to make you own LED headset. My head cost £12 to make, this includes 3 IR Emitters, 3 Resistors, some wire, a USB A connector and a cheap headset.
Here is a picture of the headset. This was taken just before I completed soldering resistors and USB connector.