I use Piwik and Wordpress and it works fine together so far. But I have problems, tracking my downloads¹ with the Download Monitor Plugin² from Mike Jolley. I asked the developer to maybe look into this, but he says he has no experience with Piwik. He said, I need a custom solution hooked into the download event³, if Piwik has an API to manually trigger a "view". Can anyone help with this?
¹ http://wordpress.org/support/topic/tracking-downloads-with-piwik² http://wordpress.org/plugins/download-monitor/³ https://github.com/mikejolley/download-monitor/blob/master/includes/class-dlm-download-handler.php#L168
Hope this helps, if not let me know what you need exactly
Handy solution. I added the CSS-Class to the Template of Wordpress Download Monitor. Seems to work!