I struggled with the same problem until just the other day.
To place pictures in posts-
1. Click on GALLERY at the top of any page.
2. Click on MY GALLERY.
3. Click on UPLOAD PHOTOS
4. Click on BROWSE
5. Find the photo in your computer that you want to upload and click on it.
6. Once it loads and you type the description of the pic, click on SUBMIT.
7.1 Go to the pic in MY GALLERY and click on it.
7.2 When the pic enlarges, right click on it.
7.3 Click on PROPERTIES.
7.4 Highlight the ADDRESS (URL) of the pic.(By clicking your mouse on it and dragging it across the entire ADRESS (URL).
7.5 Right click on the highlighted ADRESSS (URL) and click COPY
8. Either start a new thread or reply to an existing thread and click on INSERT IMAGE (yellow box) while in the message box.
8.1 A small box will open that says "ENTER THE TEXT TO BE FORMATTED". Right click and then click on PASTE.
When you SUBMIT the thread or reply, your pic should be in there.