Interior walls

So now what? my father started on the inside trying to get the house back up to some level of structural integrity. Here's a picture from the second floor. Most of the subfloor and a few of the floor joists were replaced. You may notice that there are no walls anywhere. That's becuase they had evidence of termite damage and were torn out and thrown away (also, we changed the floor plan a bit and the walls were in our way). While walls and ceilings were open, all studs and joists were treated with termite killer as a precuation (this is technique is superior to tenting since the poision stays on the wood). We weren't allowed to go near the place for a while so it must be some strong stuff.
You can see the columns lying on the floor. Those are the oringal columns, each one is a solid tree trunk turned on a lathe and weigh about 250 lbs a piece. they were stripped down to the bare wood, primed, and placed back on the porch once the porches were ready to be reassembled. By the way, the floor is level.