Hello
Dear
When use K2 items, when adding the news and to add a photo to the news
When the reader reads the news to find that the picture accompanying the story moving
How can help me to be a fixed image in the news and immobile.
Thank you

A link to your site would be helpful.

you can check the following link
www.deertna.net/index.php/2013-01-31-06-37-23/item/2-%D8%A7%D9%84%D9%85%D9%84%D9%83-%D9%8A%D8%A8%D8%AF%D8%A3-%D8%B2%D9%8A%D8%A7%D8%B1%D8%A9-%D9%84%D9%84%D9%88%D9%84%D8%A7%D9%8A%D8%A7%D8%AA-%D8%A7%D9%84%D9%85%D8%AA%D8%AD%D8%AF%D8%A9-%D8%A7%D9%84%D9%8A%D9%88%D9%85

my website :
www.deertna.net

It seems that you are having this issue because the link to the image uses the class modal which is defined in .../shaper_helix_ii/css/bootstrap.min.rtl.css to have this styling.
You can just add this in your template's css file

span.itemImage a.modal {
position: relative;
background: none;
right: auto;
margin: 0;
width: auto;
top: 0;
display: inline-block;
border: 0;
border-radius: 0;
}