TABLE align="RIGHT" BORDER="0" WIDTH="350" CELLPADDING="0" CELLSPACING="6"> Pope Benedict XVI acknowledges the crowd during his weekly general audience, in St. Peter's Square at the Vatican, Wednesday, April 18, 2007. The pontiff celebrated his 80th birthday on Monday, April 16, and April 19th marks his second year of pontificate. (AP Photo/Pier Paolo Cito) VATICAN CITY - Pope Benedict XVI is traveling to northern Italy for a weekend pilgrimage that will take him to the tomb of St. Augustine, the 5th century theologian who is particularly dear to him.Benedict is scheduled to celebrate Mass on Saturday afternoon in Vigevano, southwest of Milan, and...