Not everywhere always has fast internet connection. When we face unstable internet connection, it's always a problem. Plus when we need to install to several server in several time. I'm writing to request for a completed packages for CentOS 5.3 ISPConfig 3 which I can use them to install ISPConfig 3 without internet connection. It should include packages from CentOS which is need by ISPConfig 3. If you will make one, it could be a solid version which we will not worry about any problem cause by internet or numerous times of installation. I have time to wait if you will make it for us.
You dont need a internet connection for installing ISPConfig 3. Just download all packages to a usb stick or DVD and install them from there.