By Stephanie Akin Staff Writer METHUEN -- A day after they were rushed by limousine to tell their tale of buried treasure on national television, two men were charged with stealing the money they said they found in their back yard. Timothy Crebase, 24, of 49 Sorrento Ave. in Methuen and Barry Billcliff, 27, of 307 Hanover St., Apt. 2, in Manchester, N.H., were arrested last night after Crebase confessed they found the 1,800 antique bills, with an estimated value of more than $100,000, in a Newbury barn they were working on in early April. Now, police are trying to...