Hi! Straight to the point:
Here I'm sending you a working example I set up,
User doing post, with the ReCaptcha working:
[login to view URL]
It can be set to: only non registered users, or also to registered users (as example provided).
If you want to test with registered user, use:
USER: duga
PASS: duga456
Hope you consider my offer!
I can send you the code right now!
Thanks,
Diego