As you might have heard by now, Exchange 2007 has a new scripting language replacing ADSI, CDO and CDOEX and perhaps some other interfaces I’m forgetting. Now learning a new language can be tough, but if you are serious about implementing Exchange 2007, now could be a good time to start studying.
This is a good place to begin:
http://msexchangeteam.com/archive/2006/08/28/428777.aspx
enjoy!