To back it up, you need either an SFTP server or a server with an NFS share. I used Windows Services for Unix 3.5 (google it). It allows you to create NFS shares on your Windows box. Export both your configuration (quick) and data (set aside some ...
From 4.3.6, you must do a backup of the configuration and data and then do a fresh install of 6.01. 4.x and 5.x are similar versions of the software for different platforms - think Windows NT 4.0 and Windows 95. But MARS only supports a upgrade fro...