I looked at that and the website, having tried the free version 4, the version 5 (time limited) on the DVD I decided to upgrade straight to the version 6.
The software is very good, I backed up onto DVD without any problems whatsoever and the file will restore as an exe if I need it to. It can be full or incremental, it remembers the files to backup if you wish. Couldn't be simpler.
Personally I feel it's taken the pain out of backups. If I lose data now it'll be my own fault.