Hi
I think i'm going nuts!

The images don't want to change even after I delete it and replace it with a new image - I've even deleted all images from the cache folder and replaced all images again but all that happens is the old images show up on the catalog view mode - in the item view it does display the correct image.
Yes i have cleared my browser cache.

Test Site - This Page

All grey images should be images of food.

Please help

I can see images of food.
Check the settings of any cache plugins.

that is very strange.
I see this on both my desktop and iPad :

This is what we see

i.imgur.com/h6S5QSm.png

Clean your browser's cache and your site's cache.