. 2 201d ) to the fourth amended and restated credit and reimbursement agreement , dated as of july 29 , 2008 , among the company , various subsidiary guarantors and various lending institutions ( the 201cexisting credit agreement 201d ) that amends and restates the existing credit agreement ( as so amended and restated by amendment no . 2 , the 201cfifth amended and restated credit agreement 201d )