No thumbnails on home page

Hi, I am posting this despite finding the solution already as it may be of use to others.

I was unable to get the thumbnails to show for each product listed on the front page of either simplemarket or framemarket (parent or child).

I had been selecting various settings for hours including the 'Show Product Thumbnail' checkbox in the store settings.

I have now discovered that I needed to select a 'featured image' in the product details page for this to work correctly.

Bingo - thumbnails on the front page.

Thanks - hope this helps someone.

Please let me know if this is an incorrect procedure as I have had several install problems recently.