Hi Mary
Thank you for the detailed help. I've tried it. So far the carousel still refuses to budge beyond the first image. I'm quite sure the carousel is Bootstrap-based. Here's what I've done:
#1. I've edited gologo.js.
At Line 21 I added in the id '#home-page-carousel'.
I renamed the file from gologo.js to klass.js.
#2. I have uploaded klass.js to the /theme/klass/layout subfolder 
#3. I've edited the /klass/config.php by adding in the javascript footer line.
#4. I've cleared by Moodle cache 5 times.
Still no go. Not sure what I am doing wrong. It's really strange. If I were to click on either the "load left image" or "load right image", the carousel activates.
Regards
Frankie Kam