You can adjust the size of the contact link or any other link at the bottom of the page by adding some inline styling so that the link looks like this:
<a href="contact0.php" style="font-size: 12px;">Contact</a>
You could also put a div tag around this and specify your own style for the div that you create. As for the external link you should be able to select a page and change the type to an external link, when you do a dialog should appear that allows you to enter the URL of the external page you would like to link to. I'm including a screen shot of what this interface looks like. Pleaser describe exactly what happens when you try to apply an external link.