Bugs,
Start with downloading the *Pages '09 User Guide* from under the Help menu. Printing it out can be useful, because you can make notes in the margins.
Also see if you can get a copy of the Apple Training Series +iWork '08 - Keynote, Pages and Numbers+
This is published by Peachpit and comes with a training DVD. Check whether or when it will be updated for iWork '09.
Apple also has excellent training videos at:
http://www.apple.com/iwork/tutorials/#pages
or accessed via +Menu > Help > Video tutorials+
If you purchase a licence for QuickTime Pro (via an option in the QuickTime Player) you can download these tutorials to your hard drive and repeat them at your leisure.
Welcome to the Apple family, you will enjoy your stay!
+…or else!+ 🙂