Pretty much what the title says. I haven’t touched any ZBrush software in a while, but I remember the main application having a sort of interactive tutorial. Does ZBrushCore have that too? If so, where do you look to open that. Thanks in advance from the old noob. 
don’t think there is one, i’m a new user too but i have 4r8 and haven’t seen anything in the program itself, but i’m following along the tutorials in the zclassroom, which can be found on the zbrush website.
Hope this helps.
There aren’t tutorials within ZBrush or ZBrushCore. (I think you may be remembering the zscript tutorials that the very early versions of ZBrush had. They are long gone!)
If you’re new to ZBrushCore then the best place is the free online videos in the ZClassroom:
http://pixologic.com/zclassroom/workshop/the-basics-of-zbrushcore
There are also the online docs:
http://docs.pixologic.com/zbrushcore/
HTH,