Without having it onscreen to walk you through it, I can say this much. You need to go into your dashboard and click on the template tab. You will see all kinds of html, now start to scroll down. Pat attention to the text. You will see a line that says "Begin sidebar wrapper" or "Begin Sidebar" (depending on your format. Now look for the 3 lines of text that include a google link, as well as two more that say "edit me". That is where you add your links. Use the edit-me's as your format and start plugging them in. Here, it looks like this:
<li><a href="http://news.google.com/">Google News</a></li>
That's what the google link looks like anyway. Just above that you will see something that looks like this:
<MainOrArchivePage>
<h2 class="sidebar-title">Links</h2>
<ul>
You can change the word "Links" to title your links section if you would like.
Once you change things a few times, the html starts to get familiar, and you'll have a much easier time changing things up. Have fun with it! I hope that helps.