Just solved this problem myself tonight. Mine is an 03 1.8 petrol, the switch that needs turning is just above the brake pedal behind a flimsy felt textured cover. Just pop a few of the plastic retainers until you can see the required plug( you`ll have to be on your knees by this time). Then unplug the plug, turn the switch clockwise so that when the brake pedal is in its released position, the little button on the end of the switch is being pressed by the brake pedal arm which should stop your lights from staying on.
anthony, December 2009