I just got this car about a month ago I drove the car home but has not ran since.i noticed the headlights would start flashing when I opened the door and it started right up I drove it home then my roommate drove it to the store and it broke down at the store. It originally had a weak battery so I changed the battery now the headlights dont flash and car wont start.

 

You will need to do a bit of investigating here I think.

So, with the new battery in, the car is dead? Not cranking at all?

If so, first check to make sure you have voltage at the distributor. If not, then you need to walk it back to see if you have voltage at the alternator. If not there, then I would guess in the replacement of the battery the connecting cable has rusted through or fallen off.

If you do see voltage at the distrbutor and alternator, I would guess the ECU has died.