Trying to snap a three-game losing skid, the 49ers flew to Giants Stadium for a Week 7 duel with the New York Giants.  In the first quarter, the Niners trailed early as Giants RB Brandon Jacobs got a 26-yard TD run.  San Francisco would respond with kicker Joe Nedney getting a 40-yard field goal.  In the second quarter, New York answered with Jacobs getting a 2-yard TD run.  The 49ers responded with QB J.T. O'Sullivan completing a 30-yard TD pass to rookie WR Josh Morgan.  The Giants ended the half with kicker John Carney nailing a 21-yard field goal. In the third quarter, New York increased its lead with QB Eli Manning completing a 6-yard TD pass to WR Plaxico Burress.  The Niners struck back as CB Nate Clements returned a block field goal 74 yards for a touchdown.  However, in the fourth quarter, the Giants pulled away as Carney got a 48-yard field goal, while DE Justin Tuck forced O'Sullivan into a fumble, causing the ball to roll into San Francisco's endzone, and Morgan kicking it out of the back of the endzone, giving New York a safety. On Monday, October 20, the day after the game, the 49ers fired coach Mike Nolan and replaced him with Mike Singletary.. Which player had the longest field goal kick of the first half?