2012-04-06 15:46:07 [SEVERE] Error occurred while enabling Vault v1.2.14-b163 (Is it up to date?)
java.lang.NullPointerException
at net.milkbowl.vault.Vault.onEnable(Vault.java:112)
at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:215)
at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:336)
at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:383)
at org.bukkit.craftbukkit.CraftServer.loadPlugin(CraftServer.java:355)
at org.bukkit.craftbukkit.CraftServer.enablePlugins(CraftServer.java:337)
at org.bukkit.craftbukkit.CraftServer.(CraftServer.java:285)
at net.minecraft.server.ServerConfigurationManager.(ServerConfigurationManager.java:53)
at net.minecraft.server.MinecraftServer.init(MinecraftServer.java:188)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:475)
at net.minecraft.server.ThreadServerApplication.run(SourceFile:492)

woops, forgot to remove the registration, thanks. fixed in latest commit.