In addition to the CAA's own website, a useful source of info on this and related topics is: http://www.higherplane.flyer.co.uk/faq.htm
A touch and go landing is a landing, followed by a takeoff. Having said that, if you are flying a taildragger and are out of practice, it might be good self discipline to do at least three landings to a full stop, as you haven't finished landing a taildragger until you are sitting in the bar with the keys in your hand.