Quote: "1. do's physics need the physics card to run ?"
The only thing that will need the Physics PPU to run is the liquid physics
So you can use anything else without.
Quote: "2. when i have installed both expansions..are they installed straight into the darkbasic command base so they are ready to just code within darkbasic....or do they have seperate windows like darkshader when you preform a act such as adding shaders ect and a code snippet is avaliable to copy and paste into darkbasic.?"
No, it's not like DarkShader. Both DarkPhysics And Dark AI will be installed directly into your DarkBasic Pro so they're ready to use right away
I can't remember if the Ageia Physics drivers are included in the DarkPhysics download, but you will need that to use the physics.
You can download the latest Ageia drivers from here:
http://www.ageia.com/drivers/drivers.html
Cheers.