This site works best with JavaScript enabled. Please enable JavaScript to get the best experience from this site.
Quote from ZombieSlayer5000 you need to delete the META-INF folder in minecraft.jar
Please help!!!!!!
Your amazing for somehow knowing this without seeing any error logs, you should read the same link (but scroll down to the how to give help section):
See this post for the kind of info we need to help you: How to ask for (and give) help
Especially the part about META-INF.