Don't sweat it, jay... There's enough information in this place to lose anyone who hasn't spent the time wandering the site far too long... not to mention the spare time to figure out how to work everything.That said, for future searches, the two best things to start off with are the DT itself (the blue box in the upper left hand corner is where to enter the searches), or the newly reinstated supersearch (the box right above the threads on the main page).
If you're new (or just want to get some background,) the Mudcat FAQ thread is a great place to pick up some good info.
Welcome aboard, stick around, and have some fun!
M