Seing as no-one has been kind enough to give you a proper answer, go here http://www.lfsforum.net/showthread.php?t=20099 and download the files. once you have them, click copy, and then go into LFS>Data>DDS and paste the files into there. Then go into the game and they should be there. I hope this helped
For a new guy it may not be as obvious and he trusts the experienced players that have been here for a while. Think before you post. It may not be as obvious as yourself think.