I see the module configuration in admin panel, but there are no tags at the frontend.

This issue concerning Meta Tags Templates extension is easy-to-solve.

If you have Yoast Meta Robots extension installed, please replace file app/code/community/Yoast/MetaRobots/Block/Catalog/Product/View.php with this one: http://amasty.com/faq/View.zip

See more details on Meta Tags Templates page
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