Image file names have a numbered appended?
This will happen for any image you have resized smaller in Cool Page, when you Preview, Publish or Export. This is necessary to output the optimized images. This optimization makes much faster loading web pages and better looking images. If you don’t wish for an image to be optimized by Cool Page, then don’t resize it in Cool Page. To stop the renaming of images and get an optimized result, simply replace the image with the optimized one, by right-clicking the image and using Browse button in Image Object Properties. Note that version 2.1 of Cool Page has a bug where the name of the optimized image file is different every time. Please upgrade to later version of Cool Page for fix.