After seeing the large amount of people the visit Firefox Tutor using versions of Firefox as old as 1.0, I thought I would do something to help people remember that there's a new version out. Hey, maybe you have a reason for not updating, but at least this way you'll know when all these cool updates come around.
So on the main page of FirefoxTutor, you will see a box just to the right of the menu that informs you if you need to update your browser. As long as you are using Firefox, you'll be notified if you need to update. Sometimes the little red arrow in the corner is easy to miss, so I hope if you're a regular visitor that this will be easier to remember to check! 
I might even consider making this a distributable script so you can include it on your blog or webpage. If you'd be interested in that, email me! ethan at firefoxtutor dot com.
carney