Q: First item in Global Navigation is always current site I am trying change the order of the Global Navigation in SharePoint 2010. I notice that the current site is the fixed even though in Navigation under "Global Navigation", there is nothing. I am trying to add a new item, the root site, and have that be first.

A: If i'm not wrong, the default SharePoint navigation use 2 levels menu. It means that if you would like to use root site as a start point, you will have the same menu as in parent site. if this is true for you, you can simply activate publishing features. After activation you can find out that the Look and Feel section contains Navigation option. If you click on this link you will be redirected to the page where you can customize navigation. Also you can set navigation inheritance from parent site.

