BitTorrent is file sharing software. You need four things to have BitTorrent work: a BitTorrent client, a BitTorrent tracker, a file to share, and a torrent file (made from the file to share.) The torrent file is placed where others can have access to it (i.e. a website.), (*2)
The clients use the torrent file to connect to the tracker, this allows the client to find other peers to get the file from. This is the simplest explanation, (*3)
What is Netix?
Netix is a script for stream your torrent directly after download, (*4)
How to install Netix?
To install Netix, you do not need much!, (*5)
Web server
mod_rewrite enabled on your apache web server (see it in your phpinfo())
To begin, send your file on ftp and open your browser to the selected domain name., (*6)