I just heard from him via Facebook (http://www.facebook.com/) today. I can't check the site from work, but it may be worth your while to do a search on his full name as listed there: Douglas F. Wu. I don't know if you can read this comment on my guestbook there, but here it is just in case:
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On the subject of Mr. Wu.
Date: 2007-12-20 09:08 pm (UTC)http://www.facebook.com/n/?inbox/readmessage.php&t=6445062698
Consider it a belated birthday present from a stranger. :)