The Clonezilla interface can be a bit intimidating as only the keyboard is available to navigate through the "GUI"; (actually it's a TUI (Text-mode User Interface) rather than a GUI), for those used to Norton Ghost/ Acronis TI/ other similar image programs where point-and-click w/ mouse is available, here is a step-by-step guide to using Clonezilla Live CD (i.e. for use on a single PC)
http://www.howtoforge.com/back-up-restore-hard-drives-and-partitions-with-clonez...

On the same website (www.howtoforge.com), there is also a guide to using Clonezilla Server Edn, in a network environment:
http://www.howtoforge.com/cloning-linux-systems-with-clonezilla-server-edition-c...

I found these easier to understand for a novice than those hosted at the Clonezilla Project website or in the 'Quick Reference Card', so thought might mention them here.