I confirm, making this link less visible would be difficult. I searched many minutes to find the register button.
I tried submitting the login form empty to see if it would offer me to register, since there is often this kind of link on forum's login page. There was not.
I even tried guessing with this url: http://forum.wdlxtv.com/register.php
with no luck.
Fortunately, I did a search on this forum (Searching to register! Seriously!) and found this thread. Wow, I had never saw this before!
Register link should be at top beside login button.