PamFax for Blackberry is the Android version running on the Blackberry Playbook. One of the side affects is that when you hit "Select File" and "Document(s)", you will see the following (similar) list:

Alarms
Android
DCIM
Download
Movies
Music
Notifications
Pictures
Podcasts
Ringtones
Download
Movies
Music
Pictures

There may even be more folders. Because the version is an Android version, the Blackberry will also show the (empty) default folders from Android. But you will be able to separate them because these have capital letters, wheras the Blackberry native folder names do not. Unfortunately there is nothing we can do about this as this list is controlled by the operating system.