My car wont start anyone Help!!!?

I own a sebring 2008 sedan lx 2.4L.. and my car will not start and i had to keep getting it jumped.. one day i jumped it and the other people hooked there cables up wrong to there car.. and ever since then i couldnt start it.. i took the starter out and got it tested at autozone and it passed the test... and my battery got juice in it becase itz still have alotta shock in it... i just miss my car and want to drive it.. i just want to know what the problem is??? anyone Help!!!