Having problems getting your Client Access Server published to the Internet through your ISA 2006 firewall? First, congratulations on getting your Exchange 2007 configuration going. Given that the Exchange 2007 team put usability and a functional user interface on the bottom of their priorities list, the fact that that you got it running and working is a testament to your bold individuality and commitment to excellence and a job well done!
Now that you have finished the Herculean task of getting Exchange 2007 working, it's all downhill from there. All you need is a little guidance. And here you go! Here's a blog post from a member of the Exchange Team that will help you get your CAS published and your remote access solution to Exchange through the ISA firewall up and running.
Thomas W Shinder, M.D., MCSE
Sr. Consultant / Technical Writer