Welcome Laura!
I know I was totally lost when I first joined, but the folks here are pretty helpful and I became comfortable navigating within the first few days. I think it might just take some time and tinkering.
Personally I never go to the home page here,
http://www.faunaclassifieds.com/ ,but always straight to the forums index,
http://www.faunaclassifieds.com/forums/index.php Once there, everything's in neat sections, so it's just easier for me to follow. Perhaps it might help if you take things one section at a time? I usually don't look at any past the "General Interest Forums" myself, so I can just ignore anything below the first half of the page. I don't know whether that's just me or if it helps you any, but I'm sure you'll get familiar and find your own pattern soon enough. Just click around and see what you like using best. Good luck!