CSS optimization for IE 4/5/6/7

Hello everyone! We currently have an xHTML/CSS website that looks exactly as expected on Firefox 5.0 , 1440x900 resolution. You can find the website at [login to view URL] However it needs some modifications to look also well on IE 4/5/6/7 and older versions of Firefox since it has some minor misalignment problems. We are looking for someone to make the appropriate changes we described above and also make sure the final deliverable is css/xhtml valid. ## Deliverables Rent A Coder requirements notice: As originally posted, this bid request does not have complete details. Should a dispute arise and this project go into arbitration "as is", the contract's vagueness might cause it to be interpreted against you, even though you were acting in good-faith. So for your protection, if you are interested in this project, please work-out and document the requirements onsite. You should be able to deliver the changes wanted only by downloading the files from [login to view URL] If you want any other resources we can provide them