This is quoted from a moderator that Created a Post called "NEWBIE README"
"Welcome to bitcointalk.org! This thread goes over the basics of bitcoin, so I would suggest checking it out. Look below for more info about the forums.
Newbie Restrictions
You can only post in the Newbie and Local sub-forums till you have 5 posts and at least 4 hours on the forum. The other two restrictions are you need 1 post to be able to send a PM and 10 posts to put a link in your sig."
Guess you didnt read that thru yet