Hi Maria -- yes it worked! Good on you for giving it a go! :)
Welcome to the site -- it works a little bit like a cross between Facebook (if you're familiar with that) and blogging sites. The best places you can go to find information on how the site works if you're interested, are the Help page and the Q&A page. You can also join the Getting Started group and ask questions there if you have them.
Otherwise, looks like you found your blog and worked out posting okay. If you want to see what everyone else is posting, you can find a list of the latest network posts on the All Posts page. Just jump in anywhere you're interested.
Hope that helps, just shout if you need a hand.
~Di