So, after I went and got some more gas, I poured some down the throttle, in hopes to help it start a little faster, the car turned and turned and turned, and almost started, when the battery went dead again.

I thought that maybe, since I had my brother with his 02 Chevy Tahoe giving me a jump that it was enough juice to streamline the battery in hopes of starting the car, However the battery continually went dead, and since it was old (4yrs), I figured that I should replace it, and so I did.... I went purchased a new battery and got the starter replaced. before the starter was replaced, the car made no sound but all the lights did come one, and a hissing from the back, however the engine made no attempt to turn over..

I tried everything I can think of, but I'm a little fearful about just taking the car into my local dealership and letting them " Diagnose" the problem...
HELP ME PLEASE!!!!!