not quite. It looks as if, in UT2003, NV filters the base map at full anisotropic settings, but the other texture stages receive a max. of 2°AF. There's also some tweaking going on regarding trilinear filtering. We did an article on texture filtering in UT2003, comparing NV's and ATI's approaches, for 3DCenter. There's also some javascript / mouseover images in it to see the differences easily.