NEW YORK (AP) -- Meet Paris Hilton, grown-up. "Before, my life was about having fun, going to parties," says Paris Hilton. She says she's changed. The 26-year-old socialite has vowed to change her party-girl image after serving a 23-day jail sentence in June for violating probation in an alcohol-related reckless driving case. "There are a lot of bad people in L.A. Before, my life was about having fun, going to parties -- it was a fantasy," she tells Newsweek magazine in its October 22 issue, now on newsstands. "But when I had time to reflect, I felt empty inside. I...