Blyth, Inc., Greenwich, CT, reported that second quarter net sales increased 9% to $268.0 million from $245.6 million a year earlier. Operating profit increased 51% to $33.7 million compared to $22.3 million in the prior year period. Net earnings for the quarter were $18.8 million versus $12.9 million a year earlier, an increase of 46%.Net sales for the six months ended July 31, 2002 increased 9% to $545.9 million from $503.1 million reported a year ago. Operating profit for the six months was $...