This one is a little funky... open p16F88.inc file (in your MpasmSuite folder)... go at the end and... you'll discover those lines

Code:
; To use the Configuration Bits, place the following lines in your source code
;  in the following format, and change the configuration value to the desired 
;  setting (such as CP_OFF to CP_ALL).  These are currently commented out here
;  and each __CONFIG line should have the preceding semicolon removed when
;  pasted into your source code.

;Program Configuration Register 1
;		__CONFIG    _CONFIG1, _CP_OFF & _CCP1_RB0 & _DEBUG_OFF & _WRT_PROTECT_OFF & _CPD_OFF & _LVP_OFF & _BODEN_OFF & _MCLR_OFF & _PWRTE_OFF & _WDT_OFF & _HS_OSC

;Program Configuration Register 2
;		__CONFIG    _CONFIG2, _IESO_OFF & _FCMEN_OFF