Simply unzip this file and move the folder "texture.flyjet" to the folder "JFAIB752" in your flight simulator 9 'aircraft' folder. Then copy the following lines and paste them into the "aircraft.cfg" file in that same folder. Putting them below all other repaints you have, and renaming the top line to run sequencially after the rest.
If you want to be able to fly the aircraft in this scheme then carry out the above again, copying the "texture.flyjet" folder and pasting it into "JFFSTB752" folder. Then copy the following into the "aircraft.cfg" file as above.