Read the easter egg thing at bioware site for SOU. Witch's Wake was killed by WoTC from what I understand.
Here is the link
http://www.bioware.com/games/game_secrets.html
Gone but not forgotten...
BioWare designer Rob Bartel put in a skeleton lamenting the apparent demise of Witch's Wake. Talk to the Skeleton Chieftain in the south-east corner of the 'Crypt Tower - 3rd Floor' in Chapter Two