I have recently upgraded from running FMP4.1 in OSX/Classic to FMP5.5 in OSX(10.1.1). The transition has gone surprisingly smoothly except for printing.

It seems that my page set-ups have been lost in the upgrade. Envelope settings are out the window. Help! How do I set an envelope size?

To my knowledge Page Setups are all platform (more specifically print driver) specific. So os X has different print drivers (although they might seem the same to you) than does os 9 and it is a different operating system.

This will basically require that you recreate your print setups to include OS X versions of them and call the appropriate setup in your scripting as the platform requires.