If I toggle on the texture drawing, the three squares disappear.

At this point, it could be any of the following.

1. The Loader isn't loading the images correctly.
2. The drawing routine's slightly wrong.
3. The textures aren't showing up on the back side, and my camera's pointing the wrong way.
4. I just plain don't know what the hell I'm doing!!

Any of the above might be causing the issue.
Today will be a day of experimentation, and a heck of a lot of luck!!

(Apologies for the tiny blog, today, but hopefully I'll be having a good coding day, and then posting some more interesting content later!)