Looks like Hilary Duff,18, learned her lesson when she was rounded up with some suspected underage drinkers (see Hilary Busted item) a few weeks back at a Hollywood club. Hilary and her sister Haylie,21, along with several girlfriends, dined at Katsu -Ya in Studio City recently. Big sister Haylie took charge and proceeded to order an assortment of sushi for the table and a round of sake for everyone. She made a point of adding "everyone EXCEPT Hilary , that is." Hilary didn't care. She has bigger things on her mind. Like her boyfriend Joel Madden. His band Good Charlotte hasn' t had much financial success for the past two years and insiders say it's jeopardizing their relationship.