What you appear to have there is essentially a PIC microcontroller on a pc board that is configured to accept shields designed to be used with an Arduino. This means that you can easily connect hardware that is physically configured to be used with an Arduino to your PIC microcontroller.
As far as software is concerned you won't find much useful information in this forum since the Arduino software will not run on your PIC. You might be able to dissect some of the GLCD libraries and rewrite them, but that is about all you can expect.
file:///C:/Documents%20and%20Settings/werkplaats/Bureaublad/Arduino%20Forum%20-%20ks0108%20display%20stays%20empty.htmThis file is on your computer.