To install the Ximian Connector, run Ximian Red Carpet by selecting System->Get Software. Subscribe to the Ximian Connector for Microsoft Exchange channel, select the Ximian Connector for Microsoft Exchange2000, and click the Install button. You can also install the Connector by downloading the individual packages from ftp.ximian.com if you wish.
Once you have installed the software, you will also need to install a license file. The license file is the verification that you have paid for a license to use the Ximian Connector. You can get the license file from the the Ximian online store at store.ximian.com. You will need a browser with strong (128-bit or greater) encryption to access the store. When you purchase a Ximian Connector license, the store will mail you the license file with instructions for installation. Once installed, the license file unlocks the Ximian Connector functionality and you may connect to an Exchangeserver.