Please read the Gamesdomain review
of the game.
They mention at least twice that the game IS rendering 3d models in either software or 3d mode, depending on your choice.
The problem with ATI's anti-aliasing in these two games is that they are 16-bit color games. ATI's anti-aliasing algorith can not do ANYTHING with 16-bit games. What the Catalyst driver does in several cases (of popular 16-bit color games) is convert the 16-bit color calls into 32-bit color calls, which they can then anti-alias appropriately.
These two games they have not seen fit to 'fix', and, as this has been complained about for over a year now, it doesn't seem likely they ever will.