Actually, the last isn't so self-explanatory. 2048x2048x1024 - a texture size of 2048x2048 at a maximum bit depth of 1024 bits. I've never seen anything above 32-bit color, so how can it support 1024-bit color. Is there some hidden feature on that video card that I don't know about? I checked my settings and I have 8-bit color (yuck!), 16-bit color (fair, but don't like as it causes problems in MSPaint (inaccurate colors)), and 32-bit color (I'm using this). I don't see anything for anything higher than 32, so how can it support 1024-bit color!?

Detail mapping, as far as I've heard, only applies to terrain. This is a model and it cannot be converted to a terrain.