This my friends, is the exact same mesh model as my other 737 available for sale. If you want more information about the mesh, please view that one.
This is a model of the original 737, mid poly, and very accurate.
There are four textures included, one with just windows and lines, the other three with the paint schemes of fictitious airlines. (Not real ones, due to copyright laws).
The textures themselves are 2584 x 813 pixels, more than enough for almost every application. The textures have an alpha channel, which means that you can change the color and scheme of the airplane in a snap without affecting any other part. Makes for easy layering, too.
The texture itself should be applied as a plane from the side, and it will fit perfectly, with a little tweaking, but it's as easy as adjusting the placement a couple units.