Just wondering if these are the latest (and correct) ways to move your server and create a back-up; assuming you're using version 5:
http://www.smartertools.com/portal/KB/a19/how-to-moving-smartermail-to-another-server.aspx
http://help.smartertools.com/SmarterMail/v3/Topics/SystemAdmin/Misc/BackupMX.aspx