Kommiku is a Online Media Viewer.
Note: As is the case when installing any new plugin, it's always a good idea to backup your blog data before installing.*
Note 2: Kommiku uses some extensive URL Rewriting. It may not work on a Windows Server!
After downloading the Kommiku plugin, unpack and upload the folder, "kommiku", to the wp-content/plugins folder on your blog. Make sure to leave the directory structure of the archive intact so that all of the Kommiku files are located in 'wp-content/plugins/kommiku/'
Make sure your "Permalink for WordPress" are not the default permalink. Change it to "Day and Name" or "Numeric" but not Default.
Activate the plugin. And you should be good to go :)