Just follow the INSTALL.txt instructions included in the package.
plugins/tags/tags.index.php plugins/tags/tags.forums.php plugins/tags/tags.forums.topics.php plugins/tags/tags.list.php plugins/tags/tags.page.php plugins/tags/tpl/tags.tpl plugins/tags/tags.forums.posts.php plugins/tags/tags.list.loop.php plugins/tags/inc/functions.php system/lang/en/main.lang.php system/lang/ru/main.lang.php system/core/plug/plug.inc.php system/core/page/page.inc.php system/functions.php skins/sed-light/plugins/tags.tpl js/base.js