Hi there Ozzie, and welcome to the site
There could be a few problems, some resolve themselves with a little time, and others need a bit of tweaking to sort them out. It may simply be that you haven't been registered for very long, or you've only just joined the TRF, because it takes a few days for the registration to get activated. When you first register you get a moderate amount of access to the site and the forum, but once your TRF status is verified, extra features become available.
Can you see the gallery but not post to it, or are you not seeing the option for the gallery at all?