A company that runs together stays together. Or so is the case at J.G. Wentworth. The New Jerseybased financial services company, with offices in Philadelphia and Fort Lee, N.J., sent 29 of its then 250 employees on an all-expenses-paid trip to run in the Los Angeles Marathon in March 1999 and 20 employees to compete in the London Marathon in April 2000. In 2001, the company expects to send about 40 runners to the Prague Marathon.