Hahh, it was long time ago

I think it came in 2 packages, and (perhaps) you need to manually add the airplane to the CFG... I do not remember.
I think these are the GE engines. RR is always 1 tube, GE is 1 long tube with a small cone, and P&W uses the very short tube and long cone shape engines.
Here is a bit of CFG from the beginning:
[fltsim.0]
title=Project Opensky - Boeing 747-400 Lufthansa YU
sim=747-400-GE-CF6-80C2B1
model=
panel=
sound=
texture=D-ABVH
checklists=
ui_manufacturer=Project Opensky
ui_type=747-400
ui_variation=Lufthansa
visual_damage=1
It seems the texture folder name is very weird, maybe that is the problem ?
EDIT: I put up my whole folder here, if nothing else would help...:
http://www.fly-euroharmony.com/robert/OS744V4.ZIP