matt4pl wrote: i talked to my a buddy of mine, and he says i need a capactitor.
SOrry to say, but your buddy has fallen under the spell of marketing hype.
A capacitor is the equivolent of putting a bandaid on a cut artery. It'll help a little bit, but the blood is still going to come out.
Basically, don't get a capacitor.
Unfortunately, you have most likely killed your battery also if indeed your alternator failed. You may try to put it on a charger to see if it takes a charge.
Do you have a volt meter? If so, charge up your battery until it reachs about 12~12.5volts. Then start the car. Turn all electronics off. The volt meter should at least read a higher voltage then it did with the car off. If it doesn't then your alternator has indeed failed.
If it did indeed fail I recommend that you upgrade to at least a 130amp model.