go to cinnabar island and once you beat the Pokemon mansion Bill will come out and offer you to go with him to first island.
battle all gum.
he isn't in the one island
Give it to Celio on one island.
he is in one island in the hospital.
One island in the north.
You get a map from Celio, on one island.
If you mean Celio, his in one island pokemon center.
on island one in the graas by the spa
North of One Island.
After fixing the Network Machine on One Island, you can trade a Mudkip from Pokemon Ruby or Sapphire. You can't catch a Mudkip in Pokemon FireRed.
Growlithe is found in the Pokemon Mansion on Cinnabar Island in Pokemon Firered.
Noctowl nor hoot-hoot can be caught in firered you need to get one from emerald.
on cinnabar island