I imagine that several people have checked, I know that I have. As you said, there are no 787-8's with an Azerbaijan Airline paint job.
Also, you haven't shown an example of
WHICH Azerbaijan Airlines texture you want. I see at least two different designs on
a google search for Azerbaijan AirlinesIf you've been looking for over a month with no success, you have two options.
1) Learn how to make your own texture. This may be the quickest way unless you have no more artistic talent than I do.
2) Go to
Aircraft & 3D Design on the main page, and ask nicely if someone would be able to do it for you. Just be patient, it may be a while before someone has the time to do it. And don't forget to show them a picture of what you want.