Backie

Hi guys, hopefully someone can help, I've recently bought a 95 small turbo escort,used it for a couple of weeks and running great so decided to have some paintwork done, been in body shop for about 3 weeks during which time the battery has run down and now it won't start? If you turn the ignition on the fuel pump runs continuously but no spark just fuel, the car has a Clifford concept 300 fitted,I suspect an immobiliser problem is there any way to test these things,cheers in advance, Mark