Hi mistee, I will try to help.
Starting from scratch, click on Quick reply then click to go into the Full editor.
At the bottom of the Full Editor click on Upload Attachment button.
Click on the browse button that will appear.
In the box that appears go to the location of your picture on your PC.
If you click on that picture you should then get an option to 'open' it.......
and, having done so, that box will probably close and you should see that the location of your picture has been recorded next to the Browse button at the bottom of the full editor.
Click on the 'Add The File' button. Your screen will refresh and you should see a button that says' Place in Line' where you originally saw the Browse button.
Click that and the code for your picture will show up in the reply section where you can add what you wish to say. It will look some thin like this ... [attachment =0]2 cats.jpg[/ attachment]
Click in the preview button to make sure it has worked.
Fingers crossed for you.
Jo catza