mungominecraft

Hi, I'm trying to install forge for my little bro, I have basically zero experience with minecraft/mods. I followed http://www.minecraftforum.net/topic/1583649-how-to-install-forge-mods/ that guide, after going through the steps I launched minecraft, got the loader window saying "FML is setting up your minecraft environment", and then it went to an error window. Here's the log. ---- Minecraft Crash Report ---- // Daisy, daisy... Time: 1/17/13 12:38 PM Description: Failed to start game cpw.mods.fml.common.LoaderException: java.lang.ClassNotFoundException: colossali.SHIM.common.ironmanmod at cpw.mods.fml.common.LoadController.transition(LoadController.java:117) at cpw.mods.fml.common.Loader.loadMods(Loader.java:485) at cpw.mods.fml.client.FMLClientHandler.beginMinecraftLoading(FMLClientHandler.java:161) at net.minecraft.client.Minecraft.a(Minecraft.java:410) at asq.a(SourceFile:56) at net.minecraft.client.Minecraft.run(Minecraft.java:744) at java.lang.Thread.run(Unknown Source) Caused by: java.lang.ClassNotFoundException: colossali.SHIM.common.ironmanmod at cpw.mods.fml.relauncher.RelaunchClassLoader.findClass(RelaunchClassLoader.java:185) at java.lang.ClassLoader.loadClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at cpw.mods.fml.common.ModClassLoader.loadClass(ModClassLoader.java:57) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Unknown Source) at cpw.mods.fml.common.FMLModContainer.constructMod(FMLModContainer.java:416) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at com.google.common.eventbus.EventHandler.handleEvent(EventHandler.java:69) at com.google.common.eventbus.SynchronizedEventHandler.handleEvent(SynchronizedEventHandler.java:45) at com.google.common.eventbus.EventBus.dispatch(EventBus.java:317) at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:300) at com.google.common.eventbus.EventBus.post(EventBus.java:268) at cpw.mods.fml.common.LoadController.propogateStateMessage(LoadController.java:140) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at com.google.common.eventbus.EventHandler.handleEvent(EventHandler.java:69) at com.google.common.eventbus.SynchronizedEventHandler.handleEvent(SynchronizedEventHandler.java:45) at com.google.common.eventbus.EventBus.dispatch(EventBus.java:317) at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:300) at com.google.common.eventbus.EventBus.post(EventBus.java:268) at cpw.mods.fml.common.LoadController.distributeStateMessage(LoadController.java:83) at cpw.mods.fml.common.Loader.loadMods(Loader.java:479) ... 5 more Caused by: java.lang.NullPointerException at org.objectweb.asm.ClassReader.<init>(Unknown Source) at net.minecraftforge.transformers.EventTransformer.transform(EventTransformer.java:29) at cpw.mods.fml.relauncher.RelaunchClassLoader.runTransformers(RelaunchClassLoader.java:228) at cpw.mods.fml.relauncher.RelaunchClassLoader.findClass(RelaunchClassLoader.java:173) ... 32 more A detailed walkthrough of the error, its code path and all known details is as follows: --------------------------------------------------------------------------------------- -- System Details -- Details: Minecraft Version: 1.4.7 Operating System: Windows 7 (amd64) version 6.1 Java Version: 1.7.0_07, Oracle Corporation Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation Memory: 431775512 bytes (411 MB) / 514523136 bytes (490 MB) up to 954466304 bytes (910 MB) JVM Flags: 2 total; -Xms512m -Xmx1024m AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used Suspicious classes: FML and Forge are installed IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0 FML: MCP v7.26 FML v4.7.10.524 Minecraft Forge 6.6.0.499 4 mods loaded, 4 mods active mcp [Minecraft Coder Pack] (minecraft.jar) Unloaded->Constructed FML [Forge Mod Loader] (coremods) Unloaded->Constructed Forge [Minecraft Forge] (coremods) Unloaded->Constructed colossali_Super_Heroes [super Heroes Mod] (colossali) Unloaded->Errored LWJGL: 2.4.2 OpenGL: GeForce GT 520/PCIe/SSE2 GL version 4.2.0, NVIDIA Corporation Is Modded: Definitely; Client brand changed to 'forge,fml' Type: Client (map_client.txt) Texture Pack: Default Profiler Position: N/A (disabled) Vec3 Pool Size: ~~ERROR~~ NullPointerException: null Help would be appreciated!