I swear I did everything correctly. Triple checked times 10. Not sure why this is happening.

This is my dir,
C:\Documents and Settings\user.pcname\My Documents\Downloads\MODS\MineCraft - Mods\NoClip\WoMclient World of Minecraft>dir lib
 Volume in drive C has no label.
 Volume Serial Number is 4416-769B

 Directory of C:\Documents and Settings\user.pcname\My Documents\Downloads\MODS\MineCraft - Mods\NoClip\WoMclient World of Minecraft\lib

11/03/2010  01:33 AM    <DIR>          .
11/03/2010  01:33 AM    <DIR>          ..
10/08/2009  08:29 PM           209,077 jinput.jar
10/08/2009  08:29 PM           571,795 lwjgl-debug.jar
10/08/2009  08:29 PM           563,202 lwjgl.jar
10/08/2009  08:29 PM           150,526 lwjgl_test.jar
10/08/2009  08:29 PM            78,280 lwjgl_util.jar
11/02/2010  02:50 AM         1,520,665 minecraft.jar
11/21/2009  05:36 PM            34,275 World of Minecraft.jar
               7 File(s)      3,127,820 bytes
               2 Dir(s)  652,352,774,144 bytes free

C:\Documents and Settings\user.pcname\My Documents\Downloads\MODS\MineCraft - Mods\NoClip\WoMclient World of Minecraft>run.bat

Autodetecting java
Testing default folder
Checking C:\Program Files\Java\jre6 folder
Found java in C:\Program Files\Java\jre6 folder
Starting java from "C:\Program Files\Java\jre6\bin\java.exe"
Exception in thread "main" java.lang.NoClassDefFoundError: com/mojang/minecraft/MinecraftApplet
        at java.lang.ClassLoader.defineClass1(Native Method)
        at java.lang.ClassLoader.defineClassCond(Unknown Source)
        at java.lang.ClassLoader.defineClass(Unknown Source)
        at java.security.SecureClassLoader.defineClass(Unknown Source)
        at java.net.URLClassLoader.defineClass(Unknown Source)
        at java.net.URLClassLoader.access$000(Unknown Source)
        at java.net.URLClassLoader$1.run(Unknown Source)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(Unknown Source)
        at java.lang.ClassLoader.loadClass(Unknown Source)
        at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
        at java.lang.ClassLoader.loadClass(Unknown Source)
Caused by: java.lang.ClassNotFoundException: com.mojang.minecraft.MinecraftApplet
        at java.net.URLClassLoader$1.run(Unknown Source)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(Unknown Source)
        at java.lang.ClassLoader.loadClass(Unknown Source)
        at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
        at java.lang.ClassLoader.loadClass(Unknown Source)
        ... 12 more
Could not find the main class: Main.  Program will exit.
ERROR: Failed to run minecraft
JAVA6="C:\Program Files\Java\jre6\bin\java.exe"
Press any key to continue . . .