The .ogg should be in there by default...I'm not sure what the deal is, but it seems like you're playing on an older build! I hate to ask you to redownload and start all over, but the problem is almost definitely fixed in the newest build. There's a chance you can copy your save file over to the new game, but I can't speak to how well it would work. I wish I could help you more, but it's very hard for me to go back and edit an old build! Sorry!