I know many of you have SBS 2003 Premium with ISA 2004 Server. I know there are those of us that like to use ISA to protect the domain either by itself or in a 2 Layer aapproach. I myself have my clients running a Sonic Wall firewalls out in front of the ISA Server. I will be walking you though the setting up the ISA Server for publishing the pieces of the SBS 2008 Server that you will want to access from the outside world. This is just basic Publishing with ISA Server.
The RWW is basically using the Terminal Server Gateway piece of 2008 Server for the connections into your network clients or servers. One thing you will have to do is export out your SSL cert off the SBS 2008 Server for your remote.domainname.com or whatever you are using for the outside world and then import that into the Server Certificates Personal Store on the ISA Server. This will be applied to your Web Listner on the External NIC of the ISA Server. Also on some you will need to import this into the Intermediate Trusts also as I have had some sites that I have had to do this on.
You can use the Exchange Wizard on the ISA Server to Publish the OWA and Mobile Access and your Exchange Server. I will go into this all in greater detail in more posts on this subject as I walk you through the setting up of the ISA Server to work with the SBS 2008 Server and also your Sonic Wall of like device in front of it all.
Til Later just Roger