HTML email fixing to work on all platforms

We have had an CSS/HTML email designed and created and it is pretty much ready to go. However we need some amends doing as it is currently not working on email platforms Outlook 2003 - 2010. We use a program called campaign monitor to send out our emails and an article on their website explains the issue : [login to view URL] Will send the code and images when a job is awarded. Please only bid on this if you are 100% you know how to get this email working on all main email providers. This job also requires a quick turn around but we think its only a very quick job with a few additional lines of code so this shouldn't be a problem. Thank you.