How to Get into a premium Minecraft server with Cracked Minecraft?

I really need help on this. Please! I have a cracked version of Minecraft 1.6.4 and my friend has a premium server and they want me to play with them on it, but I can't get on! I found out that its my Minecraft thats the problem so can anyone Help me?!

Malorie Gorman

Your friend who runs the server should have a file called "server" or "server.properties" file. Tell him to open that with notepad/wordpad and find the line:
Online mode=true
and change it to:
Online mode=false

You should then be able to join w/o a premium account.

Joe

You can't join servers without a premium account.

Matthew