Making your own website from scratch is one of the most challenging and rewarding ways that you can take advantage of the internet. This mammoth 60-part video series walks you through the process of doing just that in Adobe Flash CS4. This is chapter 3 of that series, and covers the timeline of your website. If you haven't watched the previous chapters, do some now and come back. After you watch all of these videos, making your own site in Flash should be a cinch.
The first chapter is here and the next, chapter 4, is here.