My current website is deborahgrandchapteroespha.org. I am trying to find out how to edit the pictures that are in the background as you scroll down the site. I have looked for instructions on how to edit the sections of the template, but I don't think any are available. I am trying to convert this template for a fraternity so it's critical I figure this out. I would appreciate some guidance with this template. Thank you.

Do this after your domain, and you can see, in wich modules the pictures are: deborahgrandchapteroespha.org/ ?tp=1

www.joomlaplates.de/joomla-tips-und-tricks/hintergrundbild.html

Thank you so much for your very quick and timely response. It was a great help!