To show interactive documents with Authentic Scripting, Authentic Scripting must be turned on in the SPS file properties. Do this by selecting the command File | Properties. In the Properties dialog that pops up (screenshot below) select the Authentic tab and check Enable Authentic Scripts.
Additionally, you can specify whether macros can be run in debug mode from outside StyleVision (that is, in the Authentic View of other Altova products) or not. This feature is useful if you wish to test and debug a macro outside the StyleVision environment.