Speaking as a relative newbie myself, I can tell you they are an exceptionally patient bunch. The key to posting is to get the tags right - and I can also tell you from experience that they don't disown you if you screw it up the first time (or even the second). To learn more about LiveJournal tags, go to:

http://www.livejournal.com/support/faq.bml

It's worth the trip!

Welcome!