Couple questions about this site
When you sign in each time, you will notice up at the top where it says "Welcome Crayolakranz87" or whatever your's says, that behind it will say "1 new message" in RED and you'll click on that to take you write to your messages. If someone comments on your blog or a photo, same thing will happen and within the message notifying you, it will have a "click here" so you can see the comment.
You get to the signature area by clicking on User Settings at the left of this screen. Just remember that if you create a ticker (www.tickerfactory.com), just click on it, copy & paste. Do not paste the link because it will not work.
When you are copying and pasting things to OH, have two internet windows open, it's much easier!
Good luck.