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Another detailed article, this time on how to upgrade from D6 to D7: http://www.ostraining.com/blog/drupal/migrate-drupal-6-to-drupal-7/

A few links to setup 301 Permanent Redirect (302 follows the same logic but is for Temporary Redirect) in Apache: http://www.askdavetaylor.com/how_do_i_add_a_301_redirect_to_my_apache_httpdconf.html http://www.webconfs.com/how-to-redirect-a-webpage.php http://www.stepforth.com/resources/web-marketing-knowledgebase/non-www-redirect On