gjh42
Finally, I tryed to make it through editing php files, but it were too hard and useless, because I found much more simple way to make what I have to.
Colorbox - doesn't depend on version, etc. They works similar. The version is last available from the official site of this fine java script.
The solution (if anybody want to use the scripts like Colorbox or other that shows the slideshow with all linked product images) to hide additional images, that appears at the bottom of the product description and the "add to cart" box is very simple!
the CSS have simple feature to hide any element on any page just by adding "display: none" to the desired class.
I set this for the "additional images" class in the main CSS file, because I don't want additional images display as thumbnails anywere, I using colorbox, that starts slideshow in fine looking overlay window, or just displays single image, if there are no aditional images.
If anybody want to look it like I described and want to remove the additional images thumbnails while using the colorbox or similar script, you should modify yours main CSS file for the template you are currently use in the following way:
#productAdditionalImages {display:none;}
that's all :clap: