I have tried now several times myself but the only active page I found was a mirror under http://hyperprostor.g6.cz/
where all Common Lisp links give only "404 - Page not found" messages. To me it looks as if Goheeca's original homepage is recently expired or something.
According to Goheeca's user page here at the forum he was last logged in a few days before your question, so chances are good that Goheecha will find this and can give you a download link. I only wanted to tell you that it's not only you who currently can't find cl-2dsyntax downloads.