It's not possible to purchase this application anymore. Indeed, the website associated and confirmed as being the official one, isn't working at all. It has probably expired. On a side note, no other domain sells this product. You still, however, have the possibility to download a copy of the program through the application's page at Software Informer. Access the page then click on the Download (big green button on the upper-left) and wait for the download to initialize. This is the only possible way.