<EDIT>: I figured I would add some more details as to my setup:
I am currently using MCPatcher to install the mods, however, I have tried to do it manually (with the zip files and such) and it still didn't work. I have also tried to use Minecrafter to install this mod.
</EDIT:>
This is my ModLoader error report:
Feb 21, 2012 11:56:52 AM ModLoader init
FINE: ModLoader 1.1 Initializing...
Feb 21, 2012 11:56:52 AM ModLoader readFromClassPath
FINER: Adding mods from C:\Users\Ricky Lopez\AppData\Roaming\.minecraft\bin\minecraft.jar
Feb 21, 2012 11:56:52 AM ModLoader readFromClassPath
FINER: Zip found.
Feb 21, 2012 11:56:53 AM ModLoader addMod
FINE: Mod Initialized: "mod_ModLoaderMp 1.0.0" from mod_ModLoaderMp.class
Feb 21, 2012 11:56:53 AM ModLoader addMod
FINE: Failed to load mod from "mod_IC2.class"
Feb 21, 2012 11:56:53 AM ModLoader addMod
FINER: THROW
java.lang.VerifyError: (class: mod_IC2, method: HandleGUI signature: (I)Lda;) Bad type in putfield/putstatic
at java.lang.Class.getDeclaredFields0(Native Method)
at java.lang.Class.privateGetDeclaredFields(Unknown Source)
at java.lang.Class.getDeclaredFields(Unknown Source)
at ModLoader.setupProperties(ModLoader.java:1728)
at ModLoader.addMod(ModLoader.java:268)
at ModLoader.readFromClassPath(ModLoader.java:1239)
at ModLoader.init(ModLoader.java:819)
at ModLoader.AddAllRenderers(ModLoader.java:189)
at afq.<init>(afq.java:80)
at afq.<clinit>(afq.java:9)
at net.minecraft.client.Minecraft.a(SourceFile:265)
at net.minecraft.client.Minecraft.run(SourceFile:648)
at java.lang.Thread.run(Unknown Source)
Feb 21, 2012 11:57:03 AM ModLoader addMod
FINE: Mod Initialized: "mod_MinecraftForge 1.3.3.12" from mod_MinecraftForge.class
Feb 21, 2012 11:57:03 AM ModLoader init
FINE: Mod Loaded: "mod_ModLoaderMp 1.0.0"
Feb 21, 2012 11:57:03 AM ModLoader init
FINE: Mod Loaded: "mod_MinecraftForge 1.3.3.12"
Feb 21, 2012 11:57:03 AM ModLoaderMp Log
FINE: ModLoaderMP 1.0.0 Initialized
Feb 21, 2012 11:57:03 AM ModLoader AddAllRenderers
FINE: Initialized
Far as I can understand, modloader is loding up the mod_IC2.class file before the MinecraftForge files.
Lemme know what the problem is if you know please!!!
Thanks!