Mark,
The only circumstances I could see this being successful is if your friend:-
a)Lives in an ex C&W area like you, and:-
b)Has been higly fortunate and obtained a new pace box
[Link: pace.co.uk] that i'm assuming (and it's a big assumtion!) was designed for the unified NTL/C&W platform that was recently announced (here
[Link: ntl.com] and:-
c)if the new box is compatible with the Pronto.
Of course I could be wrong about a new box - NTL may just decide to roll out the diTV100 to original NTL areas because it already features the liberate/DOCSIS combo talked about in the press release.
The worst case scenario seems to be the enitre UK being left with cable STB's lacking learning remote compatibility.
We could all doomed!
P.S Rather than going to all that hassle I'd try and nail down which STB model that NTL are going to be using the future in your area - then you can check directly with Pace to se if it's compatible.