I got it figured out! First of all, the register for free-page works normal. The password is hidden in **** when I enter the page, so everything works fine there.
However in the trial page the password isn't hidden in **** but that's because of my favorite Firefox Addon: AdblockPlus ( one of the finest addons in my opinion ). If I disable the Adblockplus function the password remains hidden in ****.
This I'm going to report to the adblockplus people, because it has room for improvement ( sometimes specific videoplayers are blocked with the add-on. So no worries there anymore.
Secondly I hope you find my suggestion on the making a second trial page for free basic membershipmembers useful ( thus calling it free full access trial). If you still find that sounding confusing I will brainstorm on some more ideas, would like to help out solving this matter haha.
JJ
