I was wondering if I could have someone ansewer a coupl

I have a promblem and i dont no why this is happeneing. I download the American Airlines 737-200 and all the textures are black. i have tried many other 37 and this has been happening. Some times it is not the hole plane that is black but the wings and reversers are. i think that the 737-200 is the best plane there is so i'm trying to find a good one to use. Could any one do one in the United Airlines livery. For fs2002???