The 664P is totally pin compatible with the 1284P. I attached it as per the pin connections shown in post 1.
I ran a for/next loop through pins 0-31 to get their location on the 1284P
glcdData0Pin 0 = 1284P pin 1
glcdData1Pin 1 = 1284P pin 2
glcdData2Pin 2 = 1284P pin 3
glcdData3Pin 3 = 1284P pin 4
glcdData4Pin 4 = 1284P pin 5
glcdData5Pin 5 = 1284P pin 6
glcdData6Pin 6 = 1284P pin 7
glcdData6Pin 7 = 1284P pin 8
glcdCSEL3 29 = 1284P pin 35
glcdEN 28 = 1284P pin 34
glcdDI 27 = 1284P pin 33
glcdRW 26 = 1284P pin 32
glcdCSEL2 25 = 1284P pin 31
glcdCSEL1 24 = 1284P pin 30
At the moment the screen just lights up but nothing happens after that.