Installed the plugin, but didn't work properly. Got in comntact with (very helpful) support and figured out that you need the latest version of PHP.
I'm running PHP 4.4.4 (enough for WP and all other plugins), so my installation was a complete failure!
Also, be aware that the plugin inserts custom fields in all your posts. So now I have >2000 posts with the wrong info in them. Also getting strange code showing up in search results...
So, check your PHP version!!!