Hi ayster.
The textures being misaligned sounds like it will one of the following reasons.
1. You did not flip the images vertically before converting the .bmp to .dds
2. You flipped the textures horizontally instead of vertically.
I can get the textures from the Captain Sim free liveries for the Legendary 707 to show nicely. Here is how I did it with the John Travolta Qantas textures for the Legendary 707 (FS9):
1. I downloaded the file from Captain Sim.
2. Unpacked the textures to FSX\SimObjects\Airplanes\CS_B707-300\texture.qan2ek
3.
Renamed the following files:
b707_a1_t.bmp to b707_b1_t.bmp
b707_a2_t.bmp to b707_b2_t.bmp
b707_a5_t.bmp to b707_b5_t.bmp
b707_a6_t.bmp to b707_b6_t.bmp
qan02ek.jpg to thumbnail.jpg
Theses were the only files I needed from the zip file.
4. Added the entry into the aircraft.cfg as follows (fltsim.15 was my next available number):
[fltsim.15]
title=CS_B707-300 Paint 15
sim=csx701
model=b
panel=
sound=
texture=qan2ek
kb_checklists=
kb_reference=
atc_id=N707JT
atc_airline=Qantas
atc_flight_number=701
atc_heavy=1
ui_manufacturer=Boeing
ui_type=707-320B
ui_variation=Qantas 2002, EK
ui_typerole=Commercial Airliner
ui_createdby=Captain Sim
description=This represents John Travoltas 707 painted for the 2002 Spirit of Friendship tour.
5. I added a texture.cfg file with the following entries:
[fltsim]
fallback.1=..\..\CS_B707-300\texture
fallback.2=..\..\CS_B707-300\texture\night
fallback.3=..\..\CS_B707-300\texture\spec
fallback.4=..\..\CS_B707-300\texture\bump
And the added image shows how it looks.
If I wanted to change the .bmp files to .dds, I open them with DXTBmp.exe,
flip image and alpha, save as DDS Texture > DDS DXT3 (or DDS DXT5). After that, I would delete the .bmp files.
Here is the result:
Hope this helps.
Mark