Verified answer

Each appointee must be confirmed by the senate first. Although hearings will be after the first of the year, I don't think any can be confirmed until the new President assumes the office.

Each swearing in will happen independently, although not televised as the inauguration is, they will make CNN etc.

after confirmed each will take an oath to be sworn in. Those swearing in ceremonies are not televised, just the presidential one.../

that happens after bush leaves

and the obama concert starts

jan 20th 2009 dude