I also tried to run the sample code downloaded straight from github.
The calibration program can run the calibration steps (the moving dot) like the eyetribe UI, but once it's done calibrating it doesn't exit the calibration overlay and if I press esc to exit then a message pops up saying calibration failed. the graphical display which is supposed to show whether the eye tracker always displays the red slash even though the eyetribe UI can detect my eyes. and The mouse control button doesn't do anything even though it works through eyetribe UI. The only thing that seems to work is the "Calibration Quality" displays the same as what eyetribe UI reports.
Scroll pulls up the image which I can navigate with my mouse. But again if it's supposed to respond to my eyes I'm not seeing it.
I've uploaded the complied program here. Does it run on your side?The only thing I did was download the code from the site and compile it.