Linking blog image directly to post

Hi all,

I’m creating a simple ‘photo’ blog using Pinboard theme, where each post will be in image and nothing more. The blog is is <www.somethingaboutparis.com>

My aim:
– have the posts appear and update on my blog home page automatically (which I have achieved)
– allow users to clear on the image and be taken to the actual post page to comment and share etc.

Problem:
Currently, the image link takes users to the image file (i.e. the jpeg). I can only access the post by clicking on its title or permalink.

What I have tried to date:
– installed various plugins to try and link the image to the post page/permalink – all have failed;
– have updated <wp-admin/options> to ensure image_default_link_type reads ‘none’ or ‘post’;
– re-uploaded all my image files ensuring they are not linked to the image or attachment file.

Everything I have tried to date has failed. The image on my home screen continues to link to the .jpg file.

Grateful for fresh ideas and advice about how I can overcome this problem.

Thanks

Amelia