Don't know if this is old news but i will post it anyway.
IRC-Ork is a program that allows you to view and download all the files stored on several irc servers. It connects to a given number of irc-servers and once connected, it spies on xdcc messages sent by dcc bots. Every file advertised by every bot on those irc-servers is logged and put in a list. XDCC requests are made by a single click of the mouse.
IRC-Ork can be used to spy on public servers which is illegall and discouraged. It's main purpose is to setup a FTP-like transfer via IRC. Let's say you have an intranet and you want to advertise internal files or documents. You setup an internal IRC-server which has dcc bots running with the documents you want to advertise. Once setup, everyone in your company can access your files or run his own bot. This is a fun way to share files and not as boring as ftp.