My 214 si won't start?

I have brought a rover 214 i (this seems to be a common problem afte looking on here)
It won't start, it's not sending off a spark either!
I have changed the spark plugs, plug leads, distributor, rotor arm, crank shaft sensor, ecu and 5as (they match) coil, distributor points. The immoboliser isn't stuck on any ideas???? please!