The original (old) TF2ware used tracks from Wario-Man (in WarioWare: D.I.Y) for the win/fail/etc. sounds, so I decided to replace the new tracks with the old ones. (was better, IMO)

Here's the soundpack, if you want:
http://www.mediafire.com/?x2oqy36egvqofbd
Just go to your TF2 folder (in "steamapps"; where you installed Steam) and extract it to the "tf" folder. Be sure to backup the old files first.

Oh, and today's my birthday. Yay! :D