CHM / HTML expert needed, simple project

Hello, Very simple project. We want to convert a directory of HTML files into one CHM file. The problem we are having is that images are not being displayed if they are defined in the CSS file. We will give you a zip file of HTML, JPGs, CSS and other files, and you will deliver us: 1. a CHM file that resembles the html files exactly with all images displaying correctly, otherwise we will not pay. 2. you MUST use freeware to compile CHM so we can do it in the future and tell us the name of it. Please be able to deliver within a couple hours, this should be very fast.