Adding Points To Camera Raw's Curve
Camera Raw in CS2 has its own curves adjustments (under the Curve tab), but adding a point to the curve is different in Camera Raw than it is in Photoshop. To plot a point on your curve in Photoshop, you just click the Eyedropper on the spot in your image you want plotted. But in Camera Raw, you have to Command-click (PC: Control-click) the Eyedropper instead.