basically you only need to copy the files from the zip archive into your zencart root:
/<zencart-root>/mailhive/
/<zencart-root>/mailhive.php
/<zencart-root>/<zencart-admin>/mailbeez.php
and the plugins from
extras_zencart/zencart_1.5.0/admin
into their proper location (replace admin with your own zencart-admin directory name)
regards
cord
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