NTL Business Broadband

Anyone here got any experience of or know of any websites/forums which deal
specifically with NTL Business Broadband? I have used the NTL home service
with a cable modem and Linksys router for a couple of years now with very
few problems, but I have some specific questions regarding the business
service, fixed IP addresses, VPN, multiple devices behind the cable modem
etc etc and don't know the best place to ask......

Thanks in advance,
D.