Help please

We have just received our eye tracker,we understand it can be used with Gazetalk 5,can anyone please advise if this is possible,if so ,how is this done?
Thanks Andy
p.s we are not developers,so are on a big learning curve,we have a disabled daughter and eye gaze(not over priced e.g.Tobii)would open up a whole new world for her.
Thanks Andy
p.s we are not developers,so are on a big learning curve,we have a disabled daughter and eye gaze(not over priced e.g.Tobii)would open up a whole new world for her.