Can’t change my mega menu image links because that feature became Pro?

Hi. I am using your plugin for a client site, and we are now about to go live with the website. However, just before going live, we decided to change a couple of the menu images (Products & Services Menu). When I went to upload the new images in the place of the old ones, I realized that this feature is no longer supported in free version? That’s a bummer, taking away features that are already being used. What do you suggest? Hopefully I am missing something and that is not really the case. Thanks!

The page I need help with: [log in to see the link]