Search thru the forums here, plenty of info but trial and error is the best way of getting to know your Tour. One of the sticky threads "Tour 9630 FAQ's" is a good place to start.
Posted from my CrackBerry at wapforums.crackberry.com
This whole forum is a dummies guide in itself. Play with your device, get to know it. You can't break it unless you smash it or drop it in water. If you are stumped, search the threads. Or swap pins with someone who also has the same model. Ask them questions and share your experiences.
Posted from my CrackBerry at wapforums.crackberry.com
No Dummies Guide for Tour yet BUT, there is the Dummies Guide for BlackBerry in it's second edition. I found it very useful and still refer to it for a refresher. Amazon has a great price on it too.