Change IE Search to
Google

allows you to change the search URL in Internet Explorer. After it is changed, automatic search queries will be sent to the new search engine. You can search by typing "?" or "search" followed by your search terms into the URL text field at the top of the browser window.

Requirements

Mac OS 9.0 or later, Internet Explorer 4.0 or later, Tanaka Osax 2.0.1.