Mirgating to Active Directory 2008

I have a Windows 2003 Server as my domain controller

Using the Windows 2008 Adprep folder I did all the prep for Active 2008.  I then added a second domain controller on a Windows 2008 server. It joined the Domain with no problem.  But when checking properties on both servers it still is listing a 2003 function level.

How so I get this to a 2008 AD function?

Thanks

Dave

Dave Kozlowski