As a result my MS Natural keyboard is REALLY OLD (in fact I bought it second hand from a company I used to work for, because MS screwed with the layouts in more modern version.
I just this minute ordered the Microsoft Natural Ergonomic 4000 keyboard from Amazon.com(U.S) as they're offering it with an instant rebate, and it has the classic block of cursor keys and Insert/Delete etc.
So maybe MS has gone back to the old style configuration.