First step: Create a new user account;

Second step: Logon to your user account;

Third step: Navigate to "Create content"

Fourth step: Choose "Blog entry"

Fifth: Using editor to put content. For inserting images

Click on the image right on url textbox, upload image

Click on "add" on the image you choose

Choose text position coresponding to the image and "Insert"

Sixth: Click on "Submit" button and finish. However, one can upload attachment for the post.