
qwerty!
The best you can do is:
Scart: STB(TV) -> VCR -> TV
RF: STB -> VCR -> TV
AFAIK, the Scart socket labeled VCR on the STB is only an output so you will never get the XBox to work through it.
You could buy the legendary SCART Video Unit from Argos:
http://www.argos.co.uk/webapp/wcs/st...clickfrom=name
and that would solve your Scart problems.
As for the RF "problems" the STB only outputs the channel that it decodes and that is why you are only picking up one channel on your TV. The NTL cable does currently have the analogue channels 1-5 on and some onlder boxes were fitted with passthroughs to the RF out. Your only solution there would be to get a cable-splitter-combiner fitted.