First read this!

http://djoslin.info/required.php

When it talks about minecraft.jar use the stuff inside the folder titled: "put inside minecraft_jar"




After that copy the stuff inside "put inside resources folder" into your 
C:\Documents and Settings\( USER NAME )\Application Data\.minecraft\resources

folder




Also install risugami's audiomod:

http://www.minecraftforum.net/topic/75440-v123-risugamis-mods-everything-updated/