laucher freezes after mojang screen and server cant find info for craftbukkit file

[BenAsbo12]

Launcher Version: the latest one

Operating System: windows 7

Java Version: version 7 update 7

Antivirus Program:

Description of Problem:

laucher will freeze after mojang screen giving the error message below, i have seen some others asking the same question but the answer was you need to get a better version of the laucher as your on a developers one or something similar, but ive redownloaded numerous times over the past 2 days and still not fixed itself.

any help is much appreciated, but try to keep it simpl-ish, I'm somewhat of a newbie.

Error Messages:

--- BEGIN ERROR REPORT 3b2693f2 --------

Generated 05/09/12 15:56

Minecraft: Minecraft 1.2.5

OS: Windows 7 (amd64) version 6.1

Java: 1.7.0_07, Oracle Corporation

VM: Java HotSpot 64-Bit Server VM (mixed mode), Oracle Corporation

LWJGL: 2.4.2

OpenGL: Intel® HD Graphics Family version 3.0.0 - Build 8.15.10.2342, Intel

java.lang.IllegalArgumentException: Slot 189 is already occupied by BlockChargingBench@13df82e8 when adding buildcraft.additionalpipes.chunkloader.BlockChunkLoader@370b5789

at pb.<init>(Block.java:251)

at pb.<init>(Block.java:284)

at agy.<init>(BlockContainer.java:13)

at buildcraft.additionalpipes.chunkloader.BlockChunkLoader.<init>(BlockChunkLoader.java:16)

at mod_AdditionalPipes.modsLoaded(mod_AdditionalPipes.java:373)

at cpw.mods.fml.common.modloader.ModLoaderModContainer.postInit(ModLoaderModContainer.java:362)

at cpw.mods.fml.common.Loader.postModInit(Loader.java:290)

at cpw.mods.fml.common.Loader.initializeMods(Loader.java:629)

at cpw.mods.fml.client.FMLClientHandler.onLoadComplete(FMLClientHandler.java:223)

at net.minecraft.client.Minecraft.a(Minecraft.java:429)

at net.minecraft.client.Minecraft.run(Minecraft.java:738)

at java.lang.Thread.run(Unknown Source)

--- END ERROR REPORT 95c18d30 ----------

Error Log: