Can't change key controls on win 32bit

[vsub_]

Lets say it simple
If you are using the official version(0.8.1),the settings are in the menus above Options=>Controls
If you are using some beta,you can set the controls from the screen menu Settings=>Controls=>Key Mapping and you will have 3 pages here
1.For keyboard
2.For XInput controller...XBOX360
3.For DirectInput controller...PC gamepad
The DirectInput is disabled by default so you have to enable it first from the checkbox on the page 3