Please refer to:
w3easyAdmin:     http://w3easy.org
Backup function: http://www.ngcoders.com
CKEditor:        http://ckeditor.com/
KCFinder:        http://kcfinder.sunhater.com
PHFTP:           http://sourceforge.net/projects/phftp/
JScrypt:         http://www.fourmilab.ch