I need help with old game

[marcus]

ok call me slow or whatever but a few months back i managed to get hold of a copy of grand prix 2..now ive never really been into games on my pc that much but this game is just awesome. now my problem is this ..I have downloaded the gpedit thingy and all the seasons cars i want and can use that without a problem which is pretty cool. but i want to play different tracks that were not used in the 94 season such as the new Melbourne track and the like..i have read a few things on how this is done but carnt make heads or tails of it and basically dont have a clue as to what im doing..can anyone help me in plain english as to what I should do to add different tracks to the game ???????