Does this take into consideration using the MobileMe service to access it remotely (Back to my Mac)?
I had it working on my previous set-up (with Virgin Media) and don't remember having to create the firewall service?
Actually I'm not 100% sure sorry. On my Macbook, Back to My Mac is showing as been active.
I do have a MobileMe account but who knows what's going to happen when MobileMe migrates to iCloud in a few weeks!!