what version did you get? (btw i think kernel just means version.. or system files or something along those lines. example Kernel1.18, means version 1.18)
anyhoo, the latest should be 1.18 or something. the zip once downloaded should be called english118 (or what ever the version number you have is), when you open that you should see moonshell folder _system_ folder, just copy paste all of those straight into the micro sd once that is plugged into the computer. then transfer all your games and what not into it and off you go.. if you want i can send you the latest r4 files but youll have to add me to msn. pm me if you want.