This goes in arena.ini, which enables and puts all of your arena maps in working condition.
46.enabled = 1
46.time = 90
46.block = 3
46.spawns = 11,44, 12,24, 13,44, 12,17, 15,44, 12,10, 17,44, 18,24, 19,44, 18,10, 21,44, 24,24, 23,44, 24,17, 25,44, 24,10
184.enabled = 1
184.time = 90
184.block = 3
184.spawns = 18,39, 17,13, 20,39, 27,13, 22,39, 27,27, 24,39, 17,27, 26,39, 24,24
137.enabled = 1
137.time = 90
137.block = 3
137.spawns = 17,9, 13,10, 17,11, 6,10
138.enabled = 1
138.time = 90
138.block = 3
138.spawns = 17,9, 13,10, 17,11, 6,10
183.enabled = 1
183.time = 90
183.block = 3
183.spawns = 18,39, 17,13, 20,39, 27,13, 22,39, 27,27, 24,39, 17,27, 26,39, 24,24
:)