I'm pretty sure the 4001 is a pure only box mate sorry
For a telewest area use:
PACE di1000T
PACE di1010T Phase 1B
PACE ditv1000 Phase 1B
PACE di2000T - HARD TO GET THE BK IF THE CARD ISNT PAIRED (READ 2 x TSOP48)
PACE di4000T
SA 4000dvb
SA 4200dvb - HARD TO GET THE BK IF THE CARD ISNT PAIRED (READ TSOP56)
SA 8300 (TV DRIVE) - CANT GET THE BK IF THE CARD ISNT PAIRED
PACE di4000N - (on CR3.2 software & only if you cant get another box)