My first po8 need.some history lessons

[Mac Cat]

To post pictures, choose the "Go Advanced" button on the bottom right when you are in edit mode.
The default editor is just for text.
Advanced allows you to upload files.

Choose the second box Attach files

Choose the "Manage Attachements" radio button

Then, when you choose Manage Attachements, a new window will pop-up.
Hint: Make sure you don't have a popup blocker enabled.
AND - after you choose your file to upload, don't forget to hit one of the UPLOAD buttons.