Ok, I use customs fields to enable thumbnails.
I disabled Lightbox and and in the Thumbnail custom field entered URL of the post.
Now on frontpage when I click on are where the picture (thumbnail) should be – i go directly to the post! Just as I wanted.
BUT
that area where thumbnail should be is empty – since I removed Picture URl and entered post URL.
Any ideas on how to combine Post URl and Picture URL in Thumbnail custom field?