O' Donnell is basicly just reporting that Newsweek will say it was Rove. He isn't a source in the story, like Novak or Cooper would be.
However, on another thread there is an excerpt from Newsweek and they do not go that far at all.
As I figured out immediately, Rove's name is in the notes and his lawyer confirms that. It has never been a secret that he spoke with reporters. After the Novak column.
O'Donnell is indeed spinning the Newsweek report beyond what it says.