Have you checked under the keyboard for signs of the liquid damage? The keyboards have lugs at the top left and right that just pop up. It would be worth checking under there. It *may* just be the power adapter, but I'd also try removing the battery before doing any work on it. Also, that laptop has clearly been opened by someone who does not possess a "Black stick", and used a screwdriver to get the bottom off. Is that related? I have one of those power supplies that I could loan if it doesn't work, but I'd be guessing the little board inside that the power supply plugs into is fried.
