Problems with subpages

I am using iphone blog at http://jannekristin.com
My problem is that I can not create subpages. I want to have a about me page witht my job and my education as subpages. I have fixed it in pages, put about me as parent. But in my homepage “my job” and “my education” is in the navigation/menu

Is there some themes that do not support this attribute? Is there something I can do about it?