Re: Upgrade from Exchange 2003 Client Access to 2010
You posted an “urgent” question on Christmas day?
First – you need to reconsider the use of SSL. A wildcard certificate is not suitable for Exchange 2010. Furthermore if you are accessing the server externally, a self signed certificate is a waste of time, as the users will get a certificate prompt.
Self signed certificates are not supported for use with Outlook Anywhere or Exchange ActiveSync.
You don’t have to configure any URLs for legacy support. Simply point all users at https://host.example.com/exchange and not https://host.example.com/owa
Ensure that on the owa virtual directory that the URL is set to https://host.example.com/owa and not just https://host.example.com/
If you find the Technet article that you have posted confusing then I suggest that you step away from the Exchange environment until you have some more experience or you engage an Exchange consultant to do the setup for you.