CSS Cross-Browser Fix

This should be a quick, easy job for an expert in CSS. I just need someone to fix the template code in this WordPress site so it works in all major browsers... [login to view URL] There is also one other minor issue, where the background image for the bottom curve of the main white content area is not showing. Please see attached original design to see what it should all look like. I need this fixed immediately please, so only bid if you can start immediately and complete within 24 hours.