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How many pages are on your site? I'm seeing over 500 indexed on Google. Trying to get a feel for how many pages aren't indexed. Do you use a sitemap file at all? If you have one in place, and submit it via Google Webmaster Tools, it will show you how many pages are in your sitemap and how many of those pages Google has indexed. A secondary note though that some of those pages are Ajax File Manager pages, which you probably want to exclude from being crawled via robots.txt.