It sounds to me as if you've misunderstood the purpose of css somewhat, but I could be mistaken... try to read the reference/tutorials... those will help...
look, i'm putting as much as possible into the css-file. so if i make another css-file with changed colors, and changed images, the look of the page will change with it. kinda like a skin.
i just want to know how to set the src for an image through css, so if i have different src in different css-files, the img will change.
if you would have checked the reference....... you would have realized that there is no (spoon)/image tag in css
you can however, do what I think you'd like to do with a <div> tag and a background-image entry in css, and if you want to use more "pure" css, I would suggest going down this path instead of using tables...
i'm such a sucker for tables, i fell in love with them many years ago. but we also hates them, yes, as they behave differently in firefox, opera and ie.