PBW is currently down for an indefinite amount of time, hopefully it will be back on in a short rather than long while. In any case, we'll be moving to the next version (0.21) which I'm finalizing right now. The biggest addition in this patch is the industrial pollution and unhappiness. You can check out the general facilities page for a preview of that:
http://sfe.captainkwok.net/tech/generalfacilities.php