The island subforums are places where you can RP. The reason that a few are named is because they have significance to the plot. Here's the breakdown of the listed subforums, in case you didn't know:

North Mandarin Island: The site at which this RP began. The museum is located here. Because the museum event has already happened (i.e. we've all written about it in our profiles), this island is here in case anyone wants to go back to it for any reason.
Fairchild Island: The scientist's laboratory is located on this island in a discreet place where it can't be found out. This laboratory is where the hybrids that didn't escape at the museum were sent and held until they either escaped or were sold to Team Aqua, Magma, or Rocket.
Millsweet Island: There is another lab on this remote island. The island is uninhabited, except for those working in this top secret lab. In this lab, the surviving Pokemon are being held captive.
Ascorbia Island: The Team Aqua hideout is located somewhere on this island.
Kumquat Island: The Team Magma hideout is located somewhere on this island.
Naval Island: The Team Rocket hideout is located somewhere on this island.

When roleplaying in any of the forums, you will create your own threads. You may invite members to join your thread if you wish. You can also make threads private or public, it's up to you. The only thing we ask is that you stick to the plot. The plot will be fairly vague for a while, leaving room for creativity on your part, but you are required to not being doing something completely different from the guidelines already listed. Abusing this rule will most likely result in god-modding! So be careful. If you're not sure about something, just ask.

The other subforums that are named are Cinnabar Island and the Seafoam Islands. Since these are a part of the Kanto region, they are distinguished from the Misc. Orange Islands subforum, but they don't have any significance like the named Orange Islands above. You create your own threads in these places too. But please, do not roleplay really important events that might involve legendaries or anything like that. There will be major events later in the guild, so don't spoil them!