Logo position/z-index

I have successfully moved the menu over using the override.css, and am now trying to move the logo so that it will float above the menu. I have assigned a position of relative and z-index of 9999 to the logo. When this didn't work, I then assigned the menu a 99 z-index leaving the logo a 9999. Nothing is moving forward or back, so I'm guessing working with the wrong elements. Can you please tell me where to assign the z-index, so that I can get my logo floating above the site. As you can see in the (click link below) the logo remains behind the menu.

http://vtproject02.info/

Thank you.

Please add following CSS rules:

Code: Select all

#gkTopInterface {
    position: relative;
    overflow: visible;
}

#gkLogo {
    position: absolute;
    left: 0;
    top: 0;
}


As always- You guys are awesome!!!