some repainting questions

recently my nephew painted some planes for, but he has no idea about the flightsim world....I on the other hand know even less, except how to make the texture he send to work in the fs9....the first 2 he did were fine....htai shorts330, and a htai beech 99 for command airways....but the next one a Fokker 50 from naai...nope its all grey ive doubled checked the wording on my end and it come back correct.....somebody said about a different model.....I sent him the only paintkit from the flying carpet website.....my question is how do you know what the model is or a painkit that has different engine variants...how and where do you do this at??..thank you

Usually the paintkit will say it is for Model XYZ by MrX so then you need to search for that model making sure it is Model XYZ by MrX.

Also get AI Aircraft Editor from Owl's Nest you can view the aircraft without going in to the sim.

http://www.owlsnest.eu/phpatm/index.php?PHPSESSID=utgmghko6cbu2ja0c2fc6lhh16&direction=0&order=nom&directory=Tools

ok thanks I will try that