I found this RX_Demo program for the rfpic, only thing is it says 16f675 again, so no joy so far.

Filename: rcvr_demo.asm
; Date: April 25, 2003
; File Version: 1.0
; Assembled using:
;
; Author: Steven Bible
; Company: Microchip Technology Inc.
;
;
;----------------------------------------------------------------------
;
; Files required:
; p16f676.inc