I forgot about that. Take the files themselves (the ones in the folder) and place them into the jar. Doesn't work if you throw the folder into the jar.
So I put the files in the folder (IC2,the PNG's, the .CLASS file) into the minecraft.jar
so when I run my minecraft and I press login, it keeps telling me that it cannot connect. So when I play offline the game crashes.
what do I do? I did everything exactly as you told me to.