Danielle Steel, one of the most prolific mega-bestseller writers -- she had three million-copy hardcover bestsellers last year -- has her first 1998 hit, The Long Road Home, which went on sale April 1 with more than one million copies in print. It's Steel's 42nd national bestseller and a major aspect of Delacorte's promotion of the Danielle Steel Reading Group, which includes ads running in the month of April exclusively on the Rosie O'Donnell Show.