This is a classic question, which deserves two answers...
First, you can find out details on how a member increases rank at this thread:
https://bitcointalk.org/index.php?topic=178608.0. Which was found in the thread stickied at the top of this Beginner's board called "Newbies Read Before Posting".
Second, there's a lot of answers available in easy to find places. I'm a Newbie too and I've found out so much already without having to post simple questions. Before you post a question or make a new thread you should do a search to see if the information you seek is already easily available.
Indeed this is one of the most asked question is this forum, when you actually search this forum you can find some resources to help answer your questions. Your rank will be updated after after 2 weeks once you've already completed your 14 post but if you've manage to create 14 post before 2 weeks it will be appended in the next 2 weeks
Just continue to be active in this forum and you've read the rules from this beginners section be careful not to spam and create low quality post. If yku spam this forum with useless post potentially you might get ban. So always post some good quality content.