Here is the resolution:
<a href="<?php echo JURI::root().$images->image_fulltext; ?>">
Now the image is "clickalble" to self url
JURI::root() > your webpage url (like: something.com) $images->image_fulltext > in joomla 3.1 you can choose an image what is displayed when you click to readmore, ie when you read the full article, that image have an url, like: /images/stories/freshsite/something.jpg
This php code combines these two code, to be: something.com/images/stories/freshsite/something.jpg > when you click on the image, only this image will shows in you browser :)