Gallery

I have successful published a photograph on the web site (products), but for the life of me I cannot get it to display on the main page Gallery with the rest of the images

I can see the entry in Products > Categories
It appears to be correct compared to all the other images

To save my brain from a total overload, any idea where I am going wrong ?

The only thing incorrect as far as I can see, on the Products page the Image is devoid of any SKU Number – not sure where that`s inserted ?

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