Hi John,
he used to post fairly regularly over on the korg forums
his korg name is
tbleck

You may be able to find some posts under search function.
Maybe send a PM if all else fails.

There's an email at bottom of page, unless it's the one you've been trying.
http://www.tbleck.de/h2-musik.htm

I hadn't seen him pop up in ages, but I'm sure I saw him post a few weeks back.