I've added a sidebar, widget with "Muffin Tag Cloud" which you can see is displaying the tags. But on clickthrough it doesn't correctly display the portfolio item(s).
What you ask for, requires files customization what in reference to Item Support Policy is not allowed. So if you want to modify files and don't know how, you should contact with your web developer.
Comments
we are sorry but we do not have tags included for portfolio items.