As it comes pictures are not able to be posted so you need to activate it:
(Note these screenshots were not on the default theme but its the same layout )
1. Go to the Administer on the navigation window and click on 'modules'.
2. Scroll down a little and make sure 'Content' is turned on:
3. Scroll further down to the Images section and turn on what you need. I suggest Image, Image Attach and Image Upload but the other ones can be useful too.
Problem with image_attach
When I enable the image_attach module, I have the problem that the corresponding tables are not created. As such, in every page I get the error:
user warning: Table 'xxxxxx.image_attach' doesn't exist query: SELECT iid FROM image_attach WHERE nid=11 in /home/sites/drupal/www/master/includes/database.mysql.inc on line 172.
And, of course, I cannot attach any image to the nodes (but the images do get uploaded, because this is managed by the image+image upload modules)
Since I cannot make pictures working with this, I tried enabling the "Pictures" module, which seems quite interesting. However, I don't know how I can include the images inside the node article - they only appear as a tab in the article.
Another issue with the Pictures module is that it appears to have been discontinued in favor of another module (Media Center, I think).