Apple's Quicktime player has the capability of playing Flash SWF files and many programs, including Wildform Wild FX Pro, use this capability.
However, as of version 7.1.3 of the Quicktime player, Apple has changed the default behavior so that Flash files cannot be played until you change the preferences.
To do this you need to do the following:
Go to Edit>Preferences>Quicktime Preferences
Next, go to the Advanced tab and check the "Enable playback of Flash tracks" checkbox.