Bukkit

How do I add more arenas to play at? And How can I get back into the world to edit it?

You can add more Worlds by simply using /dvz_createworld again.

To edit Worlds you will have to manually find the correct world in the dvz_worlds directory and then move it. After edting make sure to delete the players directory and the uuid.dat or else it might break.

This is what I do.

1. Make the map locally or on another server
2. Upload the map to DvZ server and do /dvz_createworld
3. If you need to make changes do it on the local copy and re-upload it.