I always find it good practice to set the config bits in the code..

The following turns on an LED on GPIO.0 when GPIO.1 is grounded (external 10K pullup) - Hope it helps
Code:
@ __CONFIG _INTRC_OSC_NOCLKOUT & _WDT_ON & _PWRTE_ON & _MCLRE_OFF & _BODEN_ON

ANSEL = 0
CMCON=7
TRISIO = %101010

LED    var GPIO.0

main:
IF GPIO.1=0 THEN
     LED=1
        ELSE
     LED=0
ENDIF
goto main: