As well as defining pages in the component inspector as described in the basic tutorial you can also define pages using an xml file. This tutorial describes how.
1) Before you begin this tutorial you will need to gather together some images you wish to use. For the purposes of this tutorial save three images as 'img1.jpg', 'img2.jpg' and 'img3.jpg' in a single folder.
2) Open a plain text editor (eg. Notepad on Windows or TextEdit on Mac) and enter the following line of code
<?xml version="1.0"?>
This is the standard opener for an XML file. Next enter this line to start a node that will contain references to your images.
<pages>
Next, enter a page node with an id attribute so that the page can be referred to and two child nodes, url and type, the former containing the filename of the image and the latter specifying the type of transition, like this:
<page id="img1">
<url>img1.jpg</url>
<type>vertical</type>
</page>
Repeat this for each image you wish to display. For the purposes of this tutorial you need to add two more pages, one for the img2.jpg file and one for the img3.jpg file.
Finally close your pages node. Your complete XML file should now look like this:
<?xml version="1.0"?>
<pages>
<page id="img1">
<url>img1.jpg</url>
<type>vertical</type>
</page>
<page id="img2">
<url>img2.jpg</url>
<type>vertical</type>
</page>
<page id="img3">
<url>img3.jpg</url>
<type>vertical</type>
</page>
</pages>
Save this file in the same folder as your images as 'flipNav.xml' (without the quotes).
3) Open Flash and create a new file. If you wish to publish for Actionscript 2 start a new Actionscript 2 file, if you wish to publish for Actionscript 3 start a new Actionscript 3 file. Save it in the same folder as your images and your XML file.
4) Open the component panel, locate the flipNavigation folder and drag a copy of the FlipNavigation component onto the stage. Give it the instance name 'flipNav' (without the quotes).

5) With the component still selected open the component inspector panel and enter the name of the XML file you created in step 2 as the value of the 'xmlURL' parameter.

6) If you wish you can now add a menu by following steps 6 and 7 of the basic tutorial.
7) Save your file in the same folder as your images and XML file and test it.