One of the more annoying features of Netsuite is the inability to get rid of their name & branding from a Netsuite-hosted e-commerce web site. The shortcut icon (that little graphic that shows up next to the site title when you create a bookmark)
Shortcut Icon
defaults to a Netsuite 'N' graphic. I'll show you how to overwrite that with a custom icon. You will first need a 16x16 pixel graphic named favicon.ico. If you don't know how to make one, here is a tutorial.