BBQSteve,
I'm not sure who you're addressing the question to, but the smoke, regardless of the color he sees, uses a solid color and therefore will look solid. The orange smoke effect is attached to a tiny torch looking thingy and there isn't any textures associated either with the smoke or the torch.
If the orange smoke effect, fx_OrangeSmoke.fx, and the Medical Temp library are installed where they should be, then the smoke should show up orange in the tester and in the scenery that uses it.