engine wont start

ok I made a post before but i guess i wasnt clear. One night after work my battery was dead so I got a boost the girl crossed the jumper cables there was a huge spark and i pulled them off. Then we put them on the right way and the car started I left the lot and the poweer started getting weaker so I got another boost same thing happen. Then I got it towed home and after a day the light or nothing would come on,got a new battery still nothing. So I started checking my fuses and wires found that the altenator fuse had blown so i got a new fuse. Now I have light and the radio and everything come on the car cranks but wont start. plz help

Well if it cranks, check for spark and fuel.

mmhhhh.... lets just hope you didnt fry the ECU... theres are reason why the cables must be set up with both carss off (well... the giving one duh!) nor touching each other, and ground the booster battery to the chassis of the car to be started. What way did you do it?

I did it the normal way both end on the post prob shouldnt have.I cheched the wires and fuses all of them are ok but my fuel pump is not coming on so I pulled it and getting a new one so if that dont work I guess the next step is the ecu