The day of Steampipe going Live, I downloaded like twelve mods. Mostly skins, but three audio files: one to replace the end round faire of both loss and victory, and one for my hitsounds. I've gotten everything to work EXCEPT the hitsound mod. Is there something specific I need to do?
For reference, this is the mod I'm trying to get working: http://tf2.gamebanana.com/sounds/14593