Ken beat me to it...I had the same questions. It's possible you burned a fuse link somewhere, and you don't have power(12v) to all the right places anymore. Check the headlights, and for power(12v) at the large terminal on the alternator. A test light may light up, making you think it has 12v, but it may only have 5 volts. Use a multi-meter to verify actual voltage.
Also, does the "Check Engine/Service Engine" light come on? You may have codes stored in the ECM that will give you/us a clue to what happened, and how to correct it. Find the diagnostic connector under the ashtray area. Look for the small letters on the side of the connector. Use a paper clip, or small wire to connect/jumper the "A" and "B" terminals, then turn the key ON(but don't start). The "Check engine) light will flash any codes stored. It should start by flashing one long flash,a short pause, then two short flashes, indicating a "12"(blink....blinkblink). This is just a code that lets you know the ECM is in diagnostic mode. It will flash any codes three times in a row, then go to the next stored code. Give this a shot and let us know if there are any codes stored.
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Joel Adams
C3VR Lifetime Member #56
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"Money can't buy happiness -- but somehow it's more comforting to cry in a CORVETTE than in a Kia"