Centos 6 relative for me.
Many 'behaviours' between Centos 5 and 6.
Backup/restore method on Kloxo Official have 'bad' logic. When something wrong on backup/restore and then process stop. I think better when found wrong, process still continue but kloxo create 'report' (log) for error.
I will review about it and implementing backup/restore. I have an idea.