To make the image clickable the code in the widget would look something like this:
HTML Code:
<a target="_blank" href="THE DESIRED URL"><img src="IMAGE URL" alt="DESCRIPTION" /></a>
You would replace the words in caps with your information.
To make the nav bar neater, use the WordPress menu creator (in sidebar under Appearance). You can type an alternate title for the menu items by opening the item.
Like Angie, I'm not sure why you would want a list of keywords instead of the page titles, but if you do, one way to do that would be to create a custom blogroll and then put that widget in the sidebar.
Bookmarks