how do i change the program im using for my dj control air to be virtual dj?

hi, ive been watching a couple of youtube vids of people mixing with virtual dj on the dj control air, and i was just wondering how do i get mine to be in use with virtual dj?

If you have VDJ Pro Full v7.05 or superior, all you have to do is download the mapping file and configuration document available from the support site:

http://ts.hercules.com/eng/index.php?pg=view_files&gid=17&fid=62&pid=287&cid=10