There's few missing DEFINE and one bad to fit your actual hardware.
Code:
DEFINE LCD_RSREG PORTC 'LCD register select port 
DEFINE LCD_RSBIT 4 'LCD register select bit 
    ' 4      Orange / Black     RS     Register select ------Connect to pin  (6) RC4 

DEFINE LCD_EREG PORTC 'LCD enable port 
DEFINE LCD_EBIT 5 'LCD enable bit 
    ' 6      Blue / White       E      Enable ---------------Connect to pin  (5) RC5  


DEFINE LCD_DREG PORTC 'LCD data port 
DEFINE LCD_DBIT 0 'LCD data starting bit 0 or 4 
    ' 11     Blue               DB4    Data bit 4 -----------Connect to pin (10)     RC0 
    ' 12     White              DB5    Data bit 5 -----------Connect to pin  (9) RC1 
    ' 13     Green              DB6    Data bit 6 -----------Connect to pin  (8) RC2
    ' 14     Orange             DB7    Data bit 7 -----------Connect to pin  (7) RC3