Emails are down for the screamer forums. However, if you don't appear to be an offsite raider or brigader, your account has been approved.
McDonalds.exe
This is a application with the icon of a McDonalds logo. When you open it up, green text in Chinese on a black background appears. After it is done, a popup appears with presumably the author's email. After you close it, a black and white picture of a girl with a short scream will pop up at random. You need to close the process itself.
WARNING: The following video contains a screamer. www.youtube.com/watch?v=84HgfsboOww