Yeah I knew that TW uses a different allocation as it been discussed before, but even so the dhcp still only has to be programmed once just the same as ex-NTL...
Perhaps others on a telewest fixed Ip can confirm either way.
Also with installation I paid £20 to have VM residential BB and phone installed, then a month later paid £49 to have them both converted to business BB
One way of getting the install cheaper (with another £10 as discussed for the sticky IP's)