I'd like to see a follow-up article on this regarding security and when one would use HTTP to connect vs TCP/IP over port x. I am also curious as to what issues you ran into. I've had two installs of AS2K5, one on XP one on Win2K3 when they rolled that out for all the developers and in neither case did I have issues connecting to any instances that were not related to security permissions.

That being said, it is a good walkthrough of how to setup HTTP Connectivity.

Cliff