how to change the Internet Explorer 7 default search engine.

Internet Explorer comes by default with the Microsoft live search ,to change it to your favourite one do the following;
While Internet Explorer is open click on the Search Options drop down tab next to the search bar on the right hand side and choose the option Find More Providers , click on your desired search provider and then when prompted click on Add Provider(make sure you also check the option to make it your default search provider).