Mac OS Download Page To download the 9.1 Client for Mac OS X click here. To download the 8.1 Client for Mac OS 9 click here. Once the installation is complete click here. When the Login screen appears, simply enter your user ID and password and click Login. OS X Palm Condiuts click Here           For more information about the 8.3 Client for Mac OS X click here. For more information about the 8.1 Client for Mac OS 9 click here. Visit the FirstClass web site to download international clients.