i have changed the ignition in my Corsa but how do i get it started?

my 'R' reg Corsa got broken into a couple of weeks ago and the whole ignition barrel was trashed.... luckily i still had my old Corsa ('S' reg) so i had that ignition transfered.... my car wouldnt start.... we changed the chips in the keys over and now it fires up but doesnt actually keep going it just dies... so does this mean its the emobliser?? if so is it possible to deactivate/ overwrite/ re-programme without having to pay out to have it done? any suggestions would be greatly recieved!! =)