Originally posted by SirRoberto
THEN HERE WE GO !!!!!
Here is a link for the package.
Simply make a new texture folder for the PMDG-738, and unzip these files into the new folder. Then add the new texture variant into the CFG too 
I have not tested it, so it is only beta version. Screenshots of my work appreciated.
Robert,
Totally amazing! Worked pretty much first time for me, so to avoid anyone else out there suffering, here is my addition to the install instructions;
1. Go to the root PMDG 737-800 with winglets folder (C:\Program Files\Microsoft Games\Flight Simulator 9\Aircraft\PMDG737-800-Winglets in my case).
2. Copy the entire "texture" folder to "texture.EHM".
3. Unpack the repaint zip file into "texture.EHM", overwrite existing files.
4. Open the aircraft.cfg in the root PMDG 737-800 with winglets folder with your text editor of choice.
5. Copy the first three [fltsim.X] sections (if you have more than three) to between the last of the [fltsim.X] sections and the [General] section. Renumber these three new sections to fit the numbering scheme.
6. In each of the three new sections, change the "title=" and "texture=" sections. Insert "EuroHarmony" (or somesuch) into "title=" after "B737-800" and change "texture=" to "texture=EHM". If you want, change "atc_airline=" to "atc_airline=Harmony" (this will only effect offline ATC).
Job done... Now I'm off to have a proper play with it...
EDIT: In recognition of a job well done, I grabbed a few screenshots (800x600...) that I'll upload to the library in a wee bit, but my new .sig pic is just a taster...
