Major roads only?
I live on a cul-de-sac in Slough of only 25 residences which has cable running across the end of the road, but not down our road. Amusingly, Virgin didn't know this until about 9 months ago when our next door neighbour tried to get it. The men came along to plumb her in and we watched in amusement for some time as they serached in vain for an access point. Eventually we chatted with them about it and they said we'd be unlikely to ever get it as a road of only 25 possible customers wouldn't be cost effective to cable, despite the fact that every road around us is cabled up.
Anyway... getting back to the point - what chance has anyone got if Virgin don't even know which roads are cabled and which aren't?