I downloaded a feature having CSS and some images. However i rearranged them removed the images from the CSS folder and inserted them in a separate folder placed next to the cSS folder called Images. The file hierarchy looks like this
You just need to adjust the URLs in the CSS file to address the images. Because CSS files aren't active (so you can't dynamically use the context path), generally page relative URLs are used. E.g. '../../Images/whatever.gif'.
P.S. I highly recommend using only lowercase for folder names.