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M_Bison - 12:59 am on Oct 4, 2006 (gmt 0)
i don't think that is the issue here. The issue is that google is indexing both http://www.example.com/ and http://www.example.com/index.php - both the same pages (thus duplicate content), but the index.php is the one showing in "Pages From Australia". If I 301 redirect http://www.example.com/index.php to http://www.example.com/ then there will only be one page to index.
It will work, but might take a bit longer than you expect to see major results.