nice to see another from the UK, theres actually quite a few of us now
so what stage are you at now reg - whats your next thing to do?
test your glow plugs, check they're definatley glowing
check the stop solenoid
are you on flat ground? I've actually had problems starting after being on a hill the wrong way, and fuel running back to the tank
have you had your injectors pop tested?
timing all checked
cold start working properly if your using it?
and a really good battery