Please check out the change log and user manual under the More-menu in the top right corner before adding a support request.
The primary channel for support is the forum found over at SPJSBlog.com. Head over there to see if your questions have already been answeren. You can sign up for a forum user account and post any question or feedback.
If you for some reason cannot use the forum, you can use the below form to ask for support.
You can also send an email directly to email@example.com