This is your first question and it will definitely not be your last.  Welcome.  Michael 4 Base does not come with all the morphing bells and whistles, you have to purchase that separately.  All morphs included in many packages need the Morph++ to work. 

Now if you want M4 to always pop up when you start PoserPro (without the 7), open your software, select and delete Symon, and load M4.  Go to Edit>General Preferences.  Under the document tab, you will see Launch Behavior; select 'Launch to preferred state' and click 'Set Preferred State'.  Click OK in the panel and now every time you open PoserPro, your M4 will show up instead of Symon.  You can do this with any model in your library.