Oh hey, that's a much better link. I was searching for "jered kenna" and just picked the top results.

@OP: Jered Kenna lives at 20mission and he is -easily- reached by phone. Most of the people in the bitcoin community who run businesses and who are in the SF area could go knock on his bedroom doorway and just say "Hey, this dude on the internet wants you to pay his friend.", but I bet it's better to send an email to info@tradehill.com.