The Daycare is located on Four Island, not Five Island.
It is in Five Island
in the lost cave on island five
On five island in the southern portion.
Trade from fire red or collloseum and on firered it is on five island.
Team rocket will go to the dotted hole after five island in leafgreen, but I'm not sure about firered.
You have to fight the Pokemon league to unlock island four, five, six, and seven.
You can find a Metal Coat in FireRed and LeafGreen on Five Island in the Memorial Pillar, off of Five Island Meadow. You must have beaten the Elite Four and have the NationalDex.
After getting the national dex you can find national Pokemon around one island, two island, three island, four island, five island, six island and seven island.
You find one on five island, near the memorial pillar
On five island you need to have given the ruby to celio to get there.
evolve a remoraid which you can get with a super rod in island five,six and seven
With a special password you find somewhere in the game