if you upload more than one image, thumbnails for all the product images appear - when you click them, they open up in a lightbox at the largest size you set in 'media'
you can also edit the c# to make a thumbnail appear even if it is the only product image
you can also edit the c# to make a thumbnail appear even if it is the only product image
In the Module ProductInfo.ascx.cs
Change the code as follows
from
if (productPictures.Count > 1)
{...
}
else if (productPictures.Count == 0)
{...
}
to
if (productPictures.Count > 0)
{...
}
else if (productPictures.Count == -1)
{...
}
HTH
