Undo whatever you did to make the alarm work again. Try to find what model alarm you have and go to the clifford and get the documentaion for it. sounds like someone who had no clue installed it originaly.
If you can't get the documentaion, just buy a new alarm. Unless you know alarms, its just not worth the time and hassle to figure it out without the instructions. Your car has special needs alarm wise, so you need the right alarm if you want it to do anything besides sound off when a door is opened.