@karu, its not difficult to update results in search engines, just make a sitemap.xml of your site and send ping to the search engine you wanna update your result with, the search engine will automatically update the results and the cache. if you dont understand what i mean then use the sitemap generator plugin for wordpress and see how it works the creation of sitemap and pinging the search engines(google,yahoo,msn and more) both tasks in one click!