I am sorry you are having problems getting the driver for your controller but let I will do my best to help you.
The information you have provided is very helpful but I think I will need some more about your system configuration.
Can you please attach here your dxdiag report and your graphics report?
How to get it?
Dxdiag Report: Type dxdiag in Start Menu> open> Save> Copy/Paste here.
Graphics Report: Right click on desktop> Graphics Properties> Options> Drop Down Menu> Information Center> Save> Open .txt file created> Copy/Paste here.