I've installed the API CSV import GUI extension extension which directs you to "go to the url civicrm/csvimporter/import" to go to the import page, but when I go to Mysite.com/civicrm/csvimporter/import I get an empty page.
I'm having a similar error with Civivisualize which directs you to go to "yoursite.org/civicrm/dataviz". In both cases I'm getting the a blank page.
What am I missing here?
I'm on CiviCRM 4.5.5 and Wordpress 4.1.1