Listen up kids
You can not "force" anti-aliasing with your graphics card in a game like CC, because it makes use of a software rasterizer.
Even if Dan wanted to put AA into the game manually, the engine would not have the colors available to do the job properly (CC currently runs as in an 8-bit palette mode. only 256 colors)
Upping the colors could make anti-aliasing possible, but would make the game run much slower (using the current graphics engine). Dan would need to switch out the current system for something like opengl or direct3d to achieve decent framerates.
The graphics were designed from the beginning with a professionally "pixelled" visual feel in mind, so it doesn't really matter anyway. I doubt we'll see a fundamental change like that this late into development (but who knows I suppose..)