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Well for a 301 redirect you can add the redirect to your .htaccess file. However I have never used Xsitepro to build a site but I assume you have access to the code behind the pages in which case you can place a canonical tag in the header of your index.html instead of the 301 redirect. See this link on duplicate content and an explanation of the canonical tag is in there - http://www.seomoz.org/learn-seo/duplicate-content