Here is a great article that illustrates how to publish Microsoft CRM 4.0 through ISA Server 2006: http://blogs.technet.com/isablog/archive/2008/07/23/publishing-microsoft-crm-4-0-through-isa-server-2006.aspx
The article is broken up into the following sections:
- Adjusting CRM Server For External Publishing
- General Considerations
- IFD Configuraiton
- Configuring ISA Server 2006 Web publishing rule
- Troubleshooting Tips
For those who need some information on Microsoft ISA Server: http://en.wikipedia.org/wiki/ISA_Server
