Scott your da maan .. check it out: How to Install Exchange Server 2010 Beta
.. Now that Exchange Server 2010 is available to download and try in Beta format, I wanted to provide a quick blog on how to install the Exchange Server 2010 Beta. ..
This is a bit worrying .. http://social.technet.microsoft.com/Forums/en-US/exchange2010/thread/3c80a706-a396-445a-94e2-d51afdbd03e5/
The Exchange 2010 Beta isn’t supported in mixed mode with older versions of Exchange, this will come in the next Exchange 2010 build that you see.
flaphead.com 