DOnt Worry an its all good. The spark plug thing can be easily fixed. Go to the Nearest Auto Store and get 4 spark plug gromments, and a new valve cover gasket. Its about 2 bucks I did that when I painted my valve cover. You just remove the valve cover and put the new spark cover gromments on and that should be just fine. As for you burning oil if this didnt fix the problem then take it to a shop.