To edit a page click on the edit button (top right of window)

To add a page, highlight one work of text and click on the link button. Click "add link". Click "save." Then click on your newly created link and click "edit button." You can then add new content and click "save".

To add a picture: click file, then click "upload file." Once the file is uploaded, double click on the small (thumbnail) image at left to insert it into the text.