Transfer systems between old and new server might be what you are looking for . The product guide has the steps listed (page 129).
I think you could use the transfer systems feature. Go to the service portal (mysupport.mcafee.com), click on Product Documentation, and choose the product ePO and version 4.5. Look in the Best Practices Guide page 39 and following and the Product Guide page 39 and page 129.
I haven't used this feature, but it sounds like it would do what you want.
[EDIT: Oops, herbie beat me to it!]
You need to make sure you do not have any application that need to use AD (e.g. EEPC). That will not work.