Don't know if you've already tried it....., but there is a website called totalmx that you can enter your location via a drop down type box, and it will find all the tracks etc within a set distance. some are practice tracks and some are only open for races.
thanks for the replys,has anybody been to allercott pits lately??just recently gotbike so would just like to have a fart around really just to get a bit more used to the bike,cheers