Vendor Image doesn't show in a modal

[drukman2000]

Hi,
1. Vendor Image doesn't show in a modal.
Actually it is not click-able at all.
Is it configured different than any other product ?

2. In the db there is a related field file_is_product_image with table virtuemart_medias.
What's the difference between file_is_product_image=0 and file_is_product_image=1 ?
Is it relevant to the above problem ?

Thanks - Drukman.

Joomla 2.5.9
Virtuemart 2.0.20b