Messages folder

Hi folks, my friend just got a tour today and he is setting it up and personalizing it but he has run into a problem. His missed calls show up in his messages folder and put an icon on the top of the screen. he keeps the messages folder hidden. is there any way to have them not show up like that?

Hit the green phone button - this will take in to the call log. Hit the menu button, then select options. IN call logging set to none.