Some firewalls especially Norton's may prevent you from registering. The most common symptom is getting stuck on the "Agree" page. I can do nothing about this so either register from a computer without a firewall or temporally turn yours off.

So that you do not have to check back to the forum to see if it has changed I suggest that you "subscribe" to the forum using the last icon on the topic line. By doing this an Email will automatically be sent to you notifying you of a new post.