Hi Garry,
All new users are automatically placed under moderation for their first few postings. That means that the first few posts you make need to be approved by a moderator before they hit the site. Unfortunately, we do have the occasional ad-spam bot and forum attacker so this was necessary to implement.
Once you've made a couple of constructive posts and we see that you're neither of the above then the moderation tag is lifted and you'll be able to post freely.