It is unlikely your question will get to this person via this forum, best to use the contact form to get to him directly.
On the right side of the product page (just below the product details) you can find info about the author,
if his status is online then you can contact him directly,
if his status is offline then just click his name or logo to enter his profile.
On the profile page you can find a large contact button on the upper left side.
You can use it to get messages directly in his mailbox.