Is it possible to align boxes, images etc outside the layout on the right so that it appears on the right but at the same time doesn't move the entire layout left?
Do you mean an ad box like here (www.sandra-bullock.co.uk) on the right? You could also align that box to the right corner of the screen without touching the main content. Feel free to check the CSS code http://www.sandra-bullock.co.uk/styles/sbc-2005-january.css