Q: How do I edit content?
A: First, you have to be logged in. The default installation allows anyone to register. Registered Users have the ability to add and edit content on their personal page.
Once you are logged in, then a black triangle appears next to all content you have permission to edit (each of these is a "widget"). Clicking this triangle will bring up a tabbed interface. The tabs correspond to actions that can be performed on the widget.
Depending on your permissions, you should see an "Edit" action. Clicking this tab will display the contents of the widget. Make the desired changes, then click the Save button.