I've just changed mine.tehforum.co.uk from 80.195.249.217 to 94.193.54.69
So, once the DNS propagates (or if you create a Host record locally), you'll be able to use that to connect to the server, and mine.tehforum.co.uk:8123 to see the map.
I think Rich's son is the youngest at 10, but that's 4 kids on teh minecraft now - something to consider as you fall in the lava and lose all your diamonds - (swearing) :-Y