sources.list problem

I am getting a warning when I go to install ehcp regarding my sources.list file. I have copied & paste from /etc/apt/sources.list below

What other sources to I need to add to make a clean install?

my sources.list
deb http://debian.mirrors.ovh.net/debian/ wheezy main contrib non-free
deb-src http://debian.mirrors.ovh.net/debian/ wheezy main contrib non-free

deb http://security.debian.org/ wheezy/updates main contrib non-free
deb-src http://security.debian.org/ wheezy/updates main contrib non-free

deb http://ftp.de.debian.org/debian/ wheezy main contrib non-free
deb-src http://ftp.de.debian.org/debian/ wheezy main contrib non-free

# wheezy-updates, previously known as 'volatile'
deb http://ftp.de.debian.org/debian/ wheezy-updates main contrib non-free
deb-src http://ftp.de.debian.org/debian/ wheezy-updates main contrib non-free

deb http://download.webmin.com/download/repository sarge contrib
deb http://webmin.mirror.somersettechsolutions.co.uk/repository sarge contrib

1. We strongly suggest Ubuntu
2. install the new ehcp version, ehcp.net/ehcp_yeni.tgz ; others are old. (this is new beta)
3. your sources seems ok. try it. if everything ok, then, no problem. That is a warning only. that does not mean always error. same applies for debian & ubuntu.

Thank you for getting back to me. I have now installed ehcp and everything looks good for now