For all Finale 2006 users:
The Finale 2006b Maintenance Update has been released -- it includes many important bugfixes and is available here.
Once you've run the Finale 2006b updater, though, you may want to take a look at the new document that appears inside your "User Manual" folder -- called "GPOHP Tutorial Supplement.pdf". It's an in-depth tutorial explaining how to get the best results from Finale 2006, GPO (or GPO Finale Edition) and Human Playback, including a step-by-step guide for converting older scores, a list of keyswitch-triggering expressions interpreted by Human Playback, instructions for configuring percussion notation and playback, and much more.
Check it out and let me know what you think.