Start>Search type dxdiag> click to run... this will tell you what version you have, since it's Windows 7, you will have DX11, but your card can't support that.
This is a rather strange thread. I wonder what "Keonetics" wants to accomplish.
If Keonetics has Win7 installed, he (she/it) has DirectX 11, whether he wants it or not. (I believe that some of the older DX components aren't included in Win7, so theer may be some point to installing the full DX package from Microsoft.)
However, a Geforce2 MX only supports DX7 in hardware. Aero Glass effects won't be available with any drivers. 64 MB is also not supposed to be sufficient to support Aero Glass. nVidia didn't develop Vista or Win7 drivers for the Geforce 2 MX. The basic data sheet for the 2 MX at www.nvidia.com is copyrighted 2002.
It may be possible to get workable (XP?) drivers under Win7, but full support won't be possible. Win7 is entirely usable (in my opinion) without the cool Aero stuff, but I'm not sure that I see the point in installing a new OS on an old machine.