I have such type of script:
<script type="text/javascript" src="http://click.SITE.com/click/script.js?co=CODE"></script>
The images have taken by that script
How I can delete (or replace) Header images from files and setup images by this script??

what version of Atahualpa and WP?
what is the URL?
is this from a plugin - if so What plugin?
Where are you putting that code?

WP-3.1
Atahualpa 361
it is not a plugin
just script such kind as
<script type="text/javascript" src="http://click.SITE.com/click/script.js?co=CODE"></script>
I want replace image and set this script which will be show pictures
Iám not still insert this code. I just want to know is it possible to insert this script into the header and get pictures by this code??

i would suggest adding a new widget area to the header and putting a text widget in it and adding the script to the widget. You might also need the exec-php plugin