Posting is easy, however as a newbie, your posts will be moderated, which means they won't show up right away. A TER staff member has to read it first to make sure it's ok. It could take a few minutes to a few hours to appear on the boards, depending how busy they are. Now if you have specific questions about how to post something specific like an ad, or a link or a photo, then please ask that on the newbie board.  I see that you did ask one of those questions on the newbie board a few minutes before this post. Perhaps because you didn't see that post go up due to moderation, you posted this question here. You can go back to the newbie board to see your answer about the photos.