I can't walk you through it now because I'm on vacation, but I think you can create a material that is basically a gradient map (ramp) that is linear and has a black line at the beginning and is white at the end...it's hard to explain, but if you collaps the gradient ramp like this:
(# is black and - is white)
^ ^^ ^
You can apply that map as a face map and it will appear as a wireframe, you can then use a mix map to mix it with your actual texture.
Another way would be to render a sphere slightly larger than your globe and create a standard map that renders as wire instead of solid.
I could do this for you, but not until I'm off my vacation...I don't have access to 3ds max. I am a modeler as part of my day job, but no need to commission...you've already donated If you can wait til Monday I'll do it for you.