You cannot start new threads until you are registered. Registration is in two parts. The first part is filling out the form. After you do that, under your name it will say "Awaiting Registration". You must respond to the automated email confirming your registration before you are fully registered. At that point, you can post new threads. Some of the larger free email services (such as Hotmail) interfere with these confirmation emails (and yet you still get spam, go figure). Try changing your email address to something else if you are not getting your confirmation email.