The first thing I'd tell you is that you need to get your post count up. The easiest way to do that is make some comments in other people's threads. Once you hit the magic number of posts, a search function will open up to you in the upper right hand corner of the page. Using the search function you can search for threads about whatever you want. I'm not sure exactly how many posts you need to get the "additional" features of this website open to you, but lets say it's around 20 or 25. I think you also have to be active on the website for like a day or so.
In the alternative, you can also make up you own thread about whatever you are seeking and ask for advice that way.