ADSL works through your existing phone line I think. They just set it up at the exchange and then come and configure it at your house. (not sure it has anything to do with minidishes in your aerials...lol)
Mods:http://wiredon.net/gt/download.shtml
Installations:http://wiredon.net/gt/
Mods:http://wiredon.net/gt/download.shtml
Installations:http://wiredon.net/gt/