The home page rotator is a slideshow of images or videos that are updated from the rotator "Homepage Rotator". The Rotator module is located under Media > Rotators.  

To add a new image click "Add a New Slide".  In order for the slide to display, you must specify both the title and link fields. Reccomended Image size is 860x450px.

The Homepage Banner displays text next to the rotator.  To modify this section, navigate to Content > Sections > "Homepage - Banner".  

The title, text and buttons are all managed within the "Content" field of the section. It is also strongly recommended that copy length only use about 40-50 words, or as much as is the height of the rotator.