I advise you to read over the guidelines (http://ycombinator.com/newsguidelines.html) and the FAQ (http://ycombinator.com/newsfaq.html). Also, take a read over the Unoffical HN FAQ (http://jacquesmattheij.com/The+Unofficial+HN+FAQ) and http://resourcey.com/site_details/2/news.ycombinator.com/
Just to warn you, comments like "FIRST POST." while enthusiastic, in general will be downvoted since they don't contribute anything of value to the discussion. I'm sure you can contribute something more thoughtful than "FIRST POST."