After you login to Mahara. Search "eportfolio" or "team" in Search User, Click "Team, ePortfolio" name will link you to ePortfolio Team Profile page. Inside the profile page. There are lots of resources of ePortfolio.

If you look for advanced features about Mahara, you can visit Mahara Wiki. It contains lots of information about Mahara including detailed user manual of different versions and User-contributed tutorials...etc.