Download: speedsaved.com Windows Installation Extract The Files from their zip containers. Hit run (*Windows + R* or search run) Type *%appdata%* without quotation marks. Hit enter and open the .minecraft folder. Go into the Bin folder Open up the minecraft.jar with 7zip or Winrar etc Copy the file(s)(.class files) you downloaded straight into the .jar Delete the META-INF folder Run Minecraft. Mac Installation Go to Finder/User/Library/Application Support/Minecraft Go into the Bin folder Open up the minecraft.jar with Archive Utility Rename the minecraft java file to anything you want Rename the minecraft folder to minecraft.jar Copy the file(s)(.class files) you downloaded straight into minecraft.jar Delete the META-INF folder Run Minecraft.