Plot: Master carpenter Norm Abram takes host Kevin O'Connor across the Mississippi River by ferry to Algiers Point, home of the first This Old House New Orleans project back in 1990, to see how it fared during Hurricane Katrina. Back at the 2008 project in Holy Cross, plumbing and heating expert Richard Trethewey shows Norm the plumbing layout, and how HVAC contractor Raul Mena is planning on heating and cooling the house