POSKY's 737 fleet get on my nerves, you can't put textures into one Aircraft, they have to be seperate :'(

Good shots.
What exactly do you mean? If you are talking about the aircraft selection menu in FS9, just edit the POSKY aircraft .cfg files so that the manufacturer and aircraft type read the same (ie. "Boeing" and "737-xxx", xxx being whatever the specific model of 737 the aircraft is). If you do that, the aircraft will then show up under the same manufacturer and as textures under the same type.
If you are talking about the files in your aircraft folder, again, you can do some consolidation if you put a bit of work into it. AS long as the models use everything the same but for the textures, you can just copy the different textures into one folder, relabeling them texture.1, etc. Then, in that folder's aircraft.cfg file, just edit it so that it has the necessary profiles for each aircraft textures.
The necessary information will look something like this:
[fltsim.x] <--- where x is the number of the appropriate texture folder
title=Boeing 737-400
sim=Boeing737-400
model=
panel=
sound=
texture=
kb_checklists=Boeing737-400_check
kb_reference=Boeing737-400_ref
atc_id=N737Z
. . . etc., etc.
It is possible to consolidate POSKY files in various ways, provided you are talking about different skins for the same aircraft model. That is, if I understood your problem correctly. Hope this helps.
All the best,
~Darrin
PS
PD87, thanks for that scenery link. They sure do some nice work!
~D