For me it won't work.. it looks loaded, but it says unknown command on any PS related command. Also, it get strange console errors upon server boot/reload.
How do i fix this?
I am using bukkit beta build build 2838.
This is what i'm getting:

21.08 06:08:51 [Server] INFO at net.sacredlabyrinth.Phaed.PreciousStones.FieldSettings.parseSettings(FieldSettings.java:148)
21.08 06:08:51 [Server] INFO at net.sacredlabyrinth.Phaed.PreciousStones.FieldSettings.loadTypeEntry(FieldSettings.java:494)
21.08 06:08:51 [Server] INFO java.lang.NullPointerException
21.08 06:08:51 [Server] SEVERE Error occurred while enabling PreciousStones v9.6.0-SNAPSHOT (Is it up to date?)

It is a wrong value added to the config on one of the flags. Remove all the items in the force-field-blocks list and add them back one at a time to see which one of the fields has the bad flag.