Consider the possibility that your replies haven't gotten through to him for some reason. I've had e-mail problems at times, and fortunately the other parties gave me the benefit of the doubt.
You might try e-mailing him with the "Request Read Receipt" option activated. If you have Outlook Express, as you compose the e-mail to him, click on "Tools" in the message taskbar, then select "Request Read Receipt". Assuming he doesn't block sending you a receipt, this will let you know he's getting your replies.
You might try e-mailing him with the "Request Read Receipt" option activated. If you have Outlook Express, as you compose the e-mail to him, click on "Tools" in the message taskbar, then select "Request Read Receipt". Assuming he doesn't block sending you a receipt, this will let you know he's getting your replies.