Hey James, Instead of using the quick reply box at the bottom of the page, click on the ADD REPLY button at the bottom left. This opens the full editor page. In the toolbar at the top look for the Icon with the (!) exclamation point, this is the Insert Media button. Click on the little arrow and then click on Image Manager, this will open the window to upload photos. there is a 3 MB limit on photos, so you might have to resize them first.
When you get your pics uploaded, select a pic, click on insert, and it will put your pic in the post. It will put the pic where you stopped typing.
Hope this helps.
Paul