eckybell

hi all i have a 2003 1.4 c3 petrol lx model stopped running one day sent it to a garage (silly me ) he said he changed ecu and bsi now my car runs but a lot of my other parts don`t work like my electric windows have stopped working my abs light is on I don`t have abs my radio not working wothout it beeping every 10 seconds can anybody help me i dont know what he has done to my car worst bit is it a friend so don`t really want to fall out with him thanks for any help