How to tweak the menu and contact page

Hi,
How can I make
1.the menu to have active background e.g like if I'm on About-Us page, their should be a active/focus background color.
2. How can I make the contact page banner header fullwidth as shown in this shot: http://awesomescreenshot.com/07856hhs66
url: http://www.kaisteventures.com/kaiste1/contact-us/

Regards