<p>October 19, 2004 -- The woman who's suing TV personality Bill O'Reilly for sexual harassment boasted she had written a book to "take [him] down" — months before she went back to work for him, a witness swore yesterday.</p>
<p>Andrea Mackris also bragged that she was good buddies with O'Reilly's arch nemesis — Air America talk show host Al Franken, the witness said.</p>