weird. Installed drivers from here? http://www.pioneerdj.com/en/support/software/ddj-t1 try that then reopen traktor, might show up as Pioneer DDJ ASIO in audio devices
foobar2000. Pretty customizable, can have album art, playlists, lists by artist/album/folder structure, plus there's a few good plugins and skins that are really useful also has inbuilt shit for converting between formats too, which is really handy