Based on the fact you can keep restarting it after it shuts down, I do not believe it is a problem with the battery or the alternator. I still think ignition control module and crank shaft position sensor are likely suspects.

Barbie, is your brother working on this for you? If so, show him this link:

Part 1 -3.8L GM Index of Articles.

It contains some excellent write ups specific to your car'* engine, including how to test the ignition control module and the crank shaft position sensor.

get a multi-meter and start checking voltage..only low voltage will make windows slow,dash dim....check all grounds really good, especially if you are in the northern states....the "click" has me kinda wondering....and when you sat "won't start" I am assuming that it cranks fine...which reallt does not make sense with dim lights

get a multi-meter and start checking voltage..only low voltage will make windows slow,dash dim....check all grounds really good, especially if you are in the northern states....the "click" has me kinda wondering....and when you sat "won't start" I am assuming that it cranks fine...which really does not make sense with dim lights

sounds like a bad alternator or bad connections.icm could also be tested with a multimeter.