Importing sound into hammer

I tried following this http://www.facepunch.com/showthread.php?t=477852 tutorial but no dice. It’s from 07, has there been a change in how to do it?

[editline]09:50PM[/editline]

fixed

if you use counter-strike source as base, go to <steam path>/steamapps/<gamename>/<gamename>/sounds and put it there.