You can change the display name of a portlet simply by clicking on the name of the portlet.
Login to Project WebSynergy as any user of your choice.
In this example, login as Paul Tester.
Click on the name of a portlet.
For example, click on the name of the Friends portlet.
Edit the display name.
In this example change the name of the portlet to Associates.
To change the name of a portlet which is on the public page of a user, you need to login as the user and navigate to the public page of the user from My Places on the welcome menu.