With the installation of your first pptXTREME product you will see a new Pull-Down Menu in PowerPoint® next to Help called pptXTREME.  

Under this menu you will find a Sub-Menu for each installed pptXTREME Product.  This is where all the commands for this product are located.  

 

This is what your pptXTREME menus will look like:

 

 

For more information on how to customize menus and toolbars see Customizing Menus and CommandBars or this Microsoft® FAQ.