How do I tell what version driver  I have currently?

This is quite simple, right click an area on your desktop, then click the tab properties, now go to the settings tab, now click advanced, finally you can now click the tab with the name of your card. In the box down the bottom (see below) the last 4 numbers are your driver version (in my case 6.48)

Now when we click the Additional Properties Tab then you will be able to get deeper into the videocard properties. In this Tab we'll find settings importing for 3D tweaking. We'll find OpenGL, Direct3D and Hardware Overclocking. Let's walk through those.