Fix our MAGENTO e-mail system!

I need someone who can rapidly fix our Magento e-mail system, please read ALL OF THIS to understand our problem. -We just switched to a new dedicated server and that is when the problems began to occur -Our contact form works fine -Most e-mails such as newsletter subscription and unsubscription work fine -It is transactional e-mails such as order and shipping confirmations that DO NOT work -We need this done in a couple of hours -You must be a MAGENTO EXPERT ONLY -You must speak proper and understandable English $75