[Help] Modding CraftBukkit to add items

Hello, I'm new to this forum, my servers admins would like to know how to add items to minecraft in SMP because we have a RP project.
Do someone know how we can do it?
Or is it possible / not possible?
[Sorry for my bad english, I'm french]

Thx • Årystår •

Yep http://forums.bukkit.org/threads/15808

Bonjour
I don't know if that is possible but I thing that there are plugins that make new recipes (wich make new items)
Check those out , I think that's what you're talking about.
If not, just ask an plugin developer or any1 that knows that!

Au revoir!
Je suis portugais

^ it's not that easy you know. There is only one plugin in the world that supports advanced item adding. It's the one I posted above. But since API documentation hasn't come out yet, there isn't any other way at the moment apart from asking a developer to do it. Btw new recipies, doesn't mean new items. Otherwise the world would be too easy.

Thx for answers, do you know if 'itemcraft' really work?
We did all what's said in the plugin description (with the example superslopes plugin) but it don't work:

Code:

18:07:00 [GRAVE] java.lang.NoClassDefFoundError: org/bukkit/material/PoweredRail
18:07:00 [GRAVE]        at org.bukkit.Material.<clinit>(Material.java:42)
18:07:00 [GRAVE]        at org.bukkit.inventory.ItemStack.createData(ItemStack.java:171)
18:07:00 [GRAVE]        at org.bukkit.inventory.ItemStack.setTypeId(ItemStack.java:92)
18:07:00 [GRAVE]        at org.bukkit.craftbukkit.inventory.CraftItemStack.getType(CraftItemStack.java:5
18:07:00 [GRAVE]        at org.bukkit.craftbukkit.event.CraftEventFactory.callPlayerInteractEvent(CraftEventFactory.java:157)
18:07:00 [GRAVE]        at net.minecraft.server.ItemInWorldManager.interact(ItemInWorldManager.java:207)
18:07:00 [GRAVE]        at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:504)

18:07:00 [GRAVE]        at net.minecraft.server.Packet15Place.a(SourceFile:57)
18:07:00 [GRAVE]        at net.minecraft.server.NetworkManager.a(NetworkManager.java:195)
18:07:00 [GRAVE]        at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:73)
18:07:00 [GRAVE]        at net.minecraft.server.NetworkListenThread.a(SourceFile:100)
18:07:00 [GRAVE]        at net.minecraft.server.MinecraftServer.h(MinecraftServer.java:371)
18:07:00 [GRAVE]        at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:286)
18:07:00 [GRAVE]        at net.minecraft.server.ThreadServerApplication.run(SourceFile:394)

18:07:00 [GRAVE] Caused by: java.lang.ClassNotFoundException: org.bukkit.material.PoweredRail
18:07:00 [GRAVE]        at java.net.URLClassLoader$1.run(URLClassLoader.java:217)
18:07:00 [GRAVE]        at java.security.AccessController.doPrivileged(Native Method)
18:07:00 [GRAVE]        at java.net.URLClassLoader.findClass(URLClassLoader.java:205)
18:07:00 [GRAVE]        at java.lang.ClassLoader.loadClass(ClassLoader.java:321)
18:07:00 [GRAVE]        at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:294)
18:07:00 [GRAVE]        at java.lang.ClassLoader.loadClass(ClassLoader.java:266)
18:07:00 [GRAVE]        ... 14 more
18:07:00 [GRAVE] Unexpected exception

I think that mod is inactive... Is there another mod exactly like that but ACTIVE for 1.2.5?

CustomStuff is active and available for CraftBukkit 1.2.5, not exactly like ItemCraft but it's close.