OK, I admit I'm useless.
Theoretically, to add images into the content through the CMS you click on the image that contains what resembles a tree (sorry if it isn't!) with grass and sky. This image is labeled 'Insert image'.
However, when I do that, I get a new area above the tabs labeled 'Content', 'Behaviour', 'Reports'. This new area contains a label 'Folder', a drop-down, followed directly by a text field. Under all that is a gray area that contains the labels '(Choose a folder above)' on the left hand side and 'Description' on the right hand side. Under that again is another label, 'Alignment/style', followed by a drop down with three choices: on the left with text wrapping around, on the right with text wrapping around, center
Upon clicking the drop-down that has 'Folder' as its associated label, it folds out and is completely blank. I cannot choose anything.
What should I do to insert an image?
What is the purpose of the text field following the folder drop down?