Richard, you are right I don't know what I am talking about, sorry

And thank you, I feel both silly and unworthy

Obviously I have been listening to the wrong people, as
I got the impression that NTL either munge or block port 80

I apologise, I did not intend any offence.
OK, so I have my SME server setup as my one stop solution, i.e. providing my gateway to the internet, my firewall and my web server. As such it is connected to my cable modem and my local lan.
Now I have set up a website in an i-bay and was happily able to look at this website from my internal lan as if it was external, i.e. looking at www.<url>.<domain>, but I realised that no-one else could see it, i.e. on the net. (BTW I use dyndns).
So after wondering why this was I thought perhaps as
most ISPs don't necessarily like home users to run web server perhaps they did something to stop it. Looking around I seemed to find much discussion about blocking of ports, so I'm afraid I assumed that was my problem

Anyway, having changed the port I can now see my web site from outside using <url>:85 but I now find I am
browsing my primary i-bay and not the one with my website in ?!
Obviously what I would really like is to simply serve my website through port 80 and have it seen by the outside world.
Apologies for my verbosity but I am hoping you will understand, and hopefully be better able to help me with all of the above info.
Thanks again,
Stu