To install the repaint, copy the folder texture.BAirways to Microsoft Games\Flight Simulator 9\Aircraft\PMDG747-400

Then open the aircraft.cfg and add these lines under your las entry that starts by [fltsim.0]
 
Where the X appears on the first line, replace by the number of your following entry

[fltsim.x]
title=Boeing 747-400 British Airways
sim=B747-400
model=RR
panel=
sound=
texture=BAirways
kb_checklists=PMDG747-400_CHECK
atc_id_color=0xffffffff
atc_id=Speedbird
atc_airline=British Airways
atc_flight_number=744
ui_manufacturer=Boeing-PMDG
ui_type=747-400 RR RB211 Engines
ui_variation=Boeing 747-400 British Airways
description=Repaint made by Guillem Roca for the PMDG 747-400
visual_damage=0
atc_heavy=1

Autor: Guillem Roca

PLEASE respect my work on this repaint, and don't post it elsewhere without my permision.