Creating a Link tutorial

I’m trying to learn how to use xml, and I really like this tutorial http://www.kirupa.com/web/xml/examples/sortedgradeslist.htm My question is how would I write my action script to allow the text (First Name, Last Name, GPA) to open up a link?

I wrote this into the xml file & I don’t know if it is right.
Original Code:

<student first="James" last="Johnson" gpa="3.3" </>

My Code:

<student first="James" last="Johnson" gpa="3.3"
<link> http://www.yahoo.com</link> </>