How to Extend the Width of my Menu Size

Hi , i have placed one Menu on the header,

my site : http://techbuzzes.com

Image of Menu : http://techbuzzes.com/wp-content/upl...13/07/menu.jpg

How do i extend Menu Width... Currently it is: " ul#menu1.cf.menu 523px x 88px "

i want to make it as : " ul#menu1.cf.menu 723px x 98px "

Currently on Menu i have: ( About US, Contact US , Categories , SiteMap ,Privacy Policy )

i want to add two more categories to the Menu : ( Disclaimer , Free Domain)

but when i try to add it , the Menu is extending and going out of alignment... thats the reason i want to increase....


Let me make it simple ( Kindly see the Below Pics) -

This is how the Menu is : http://techbuzzes.com/wp-content/upl...t-1024x244.png

This is How i want the Menu to look like : http://techbuzzes.com/wp-content/upl...013/07/how.png