Completed Things: 1). Custom Post type for Slider as your requirement. 2). Created to custom widgets for social icon and display latest post from selected category(For Latest news). 3). Two level of menu (Example for pages menu). 4). created theme option for manage logos and footer content. 5). Sub page display tabs.
Details: http://sterlosoft.com/demo/company/ http://sterlosoft.com/demo/company/wp-admin/ user: demo pass: demo!#%