To modify a Task Pane, open the Task Pane Manager and then:
1) Click Options. The Options dialog opens.
2) In the left pane, choose Task Pane Manager.
3) Click Customize.
4) Click Customize Panes.
5) Click the pane you want to modify. In this case, that's Community.
To modify the header part of the Community page:
6) Choose the View Files option button.
7) Click on News.XSL
8) Click Edit.
9) Scroll down until you find the part that lists all the sites, and you can (carefully) edit.
10) When you close the editing window, save your changes.
11) Click Save.
12) Click OK.
Tamar