Ok, if I understand you right, you have two problems:
1. The navigation is pulling in pages from Dynamic Drive, not the pages you want to link to.
2. It's loading them into the navigation frame, not the main one.
Have a look at the source of this page:
See you've got stuff like:
That's where you put your links. And to get the link to open in the correct frame (on your site, the main frame is called "right"), you set its target.
<li><a href="http://www.dynamicdrive.com/style/csslibrary/category/C1/">Mission Statement</a></li>
So, for example, if you had a page called "mission_statement.html" that you wanted to load from that navigation link, you'd change the code above to read:
<li><a href="mission_statement.html" target="right">Mission Statement</a></li>