Oh, so you want long shutter speeds?

Yeah just pull up the Exposure Compensation control. It's the +/- button on the back of the camera. You will see a scale that reads -2..-1..0..+1..+2 and to the right of that scale a little box (most likely with 1" in it) and up/down arrows next to it.

To use long shutter speeds from the Exposure Compensation control, just press either the up or down button on the back of the camera and it'll highlight the shutter speed in the little box on the right. You then pick the shutter speed you want. There's no metering in this mode so you basically just have to take a picture at one setting, see how it looks in review mode, and adjust the shutter speed as necessary.