Trying to Understand the World of Blogging...

From what I understand you have 2 ways to contribute, you can comment on someone else's POST or you can create an original POST. To create an original POST, click on your name on the blog screen, then in the new window click on HOME and then in the new window click on the GREEN + Try it out!

To add a picture to your POST, you need to click on the button to the right of the spell check button on the post menu. It will then give you options on how to choose the proper picture.