Interactive - are PPV channels as far as i know and one can order them only using original (official) receiver connected to stationary telephone SkyUK network. Modem will call and order by itself. We have no such option and will never be (please remember that uncoupled cards are used here).
Moreover,
"On 22 August 1999, Sky utilized a feature of the, then new, Sky Digital system to allow an interactive football match to be shown. Viewers were given the ability to choose the things such as which camera they viewed during the Arsenal vs. Manchester United. The concept proved popular[1] and soon Sky used the new interactive service, known as Sky Sports Active, for other sports.
Sky Sports Red Button (interactive) services are available for Virgin TV customers who subscribe to Sky Sports."
We never heard of the Virgin TV and do not know what is this.