 he 49ers responded with RB Frank Gore's 12-yard TD run, yet St. Louis got Wilkins to kick a 51-yard field goal as time ran out on the half.In the third quarter, the 49ers took the lead with QB Alex Smith completing a 1-yard TD pass to TE Eric Johnson for the only score of the period.In the fourth quarter, the 49ers increased its lead with kicker Joe Nedney nailing a 24-yard field goal.