So today I’ve noticed that I can’t perform any 2D drawing in a 3D scene;  2D objects such as vsSprites just don’t seem to show up at all.

Not sure why that is.  My plan for this game had been to basically do it using 2D objects, but in a 3D scene (to allow for easy starfield depth effect and etc).  Might spend an hour trying to sort this out tomorrow, but if it isn’t obvious how to fix it, I’ll just revert to doing 2D for everything, and I’ll figure out what’s going wrong after the Game in a Week.  Have lost so much time on these little issues, so far.  :/