Need fix for Foundation / vBulletin CSS problem

We operate a complex group of web sites that encompass a custom ecommerce site (php using Foundation 5), a community resource site (Joomla), and an active forum (vBulletin). We are attempting to graft the Foundation 5 header and nav bar to the vBulletin site. It works great on Mac and PC using Chrome and FF, but it is a complete disaster in IE. I hate IE, but that is beside the point. The job is to modify the Foundation 5 css file, the vBulletin style vars, or the vBulletin template header to fix the carnage caused by IE. Here are examples: Here is an example screen from the site: [login to view URL] View this in Chrome and IE and you will see the problem. Access: I can provide the Foundation files. I can give you administrator access to VB so you can adjust the header and the style vars. However, I cannot give you access to the server, even by FTP. We simply don't do that. I am happy to mount files for you for testing. Final product: Your task is to provide css files, VB style var modifications, and/or header modification mark-up so the menu works in all modern browsers. There is some urgency to get this done so here's the schedule: I will leave the project open for bidding for the next 4 to 6 hours. The deadline for the completed project is 48 hours. You will see from my feedback I try to be a good employer and bonus freelancers for good, fast work. If you have any questions please let me know. I will be offline for 4-6 hours but will get back to you as soon as I can.