Unless I've overlooked the relevant info, I can't find where they say how much commision you'll receive on sales.
There appears to be many of these sites springing up that contain no proper contact info such as where are they and do they have a proper address except for an e-mail.
I would be very wary of such a site.
Hi guys.
Information about commission is in Faq.
Please click FAQ in main menu.
Their commission is 40%, so Photographer will get 60% or more.
The address you can find in "About Us" ( main menu )
Thanks and good luck