this 2 path were not working, but looking with firebug i have found the solution
.slide[[+idx]] {
background-image: url('[[++site_url]]/[[+image]]');
} (no need of the other ss rules, they stay in the css file.
Well i thin it's time to buy you a beer

))
just another question, i think to use migx for the quotes areas (same thing with bg css images), but as they in 3 different places, i suppose i have to make the imagelist call in the 3 different places, and have i to make 3 differents tv ?
And also for the works section (they also have bg css images) is it better to do it with getresources or migx (i think getresources,but again i have to find the way to get my bg img css changed)