Microsoft IE9 has few new modern user interface, and one of them is search box. Have you installed IE9 and cannot find search box in upper right corner as IE8 used to have??
This is how search box used to be in previous version of IE.
In IE9 address bar will also act as search box. There is no separate search box. Just type in the address box and press enter. It will open search search of your default search engine.