Unfortunately, the product can be purchased through CTE (as specified on the official website). There is no download, payment system or online page set up for buying options. Everything is done through the contact phones or email.
Use this info to get in touch with the developer:
Phone: (604) 549-4404
Fax: (604) 549-4403
Email: cte@pathloss.com
Additionally, access the purchase page to find more information about the product.