Mac - PowerPoint Questions

Just discovering how to use PP and have a few questions.

  1. From doing a search of the Apple site earlier I am under the impression that you cannot get audio to run throuout a presentation. Is there any way I can do this by linking or using some other program?

  2. When trying to align objects to the slide nothing seems to move. How can I get things to even up. Can I do it all at once?

  3. I want to create four boxes that will move from the centre out and disappear (smoothly), two left, two right. I have tried some of the presets but they all seem to go in the same direction. Solution?

I posted these questions over there but as they don’t have a specific “Microsoft” help topic it got ignored.