Help Needed To Sort Out A Butchered 2.3l Immobiliser Circuit

[had-enough-of-cars]

i have a ford galaxy t reg and it cut out. i took it to ford and they made it worse. i've managed to fix most of it but they told me they disconnect the alarm system and there was no immobiliser but still not starting. they really conned me up and wanted £1800 for not fixing it so i took the keys off of them and just had it towed out of there. they were absolutely awful. Thats Bishops stortford ford gates. never go there.!!!!!!

Please help me if anyone knows anything. I have cables hanging out of everywhere.