ac clutch problem

I was driving home from work and I put up the windows to run the ac
heard a noise in the compresor area, and I quickly turned off the ac, since it was related since it happened when i turned on the ac.
I pulled over to look under the hood and I see a disk plate that fell from the ac clutch, it looks to be a thin disk about the thickness size of about 4 cd's together, and about the size of a cd. diameter, it came off the clutch and it seems to be sring loaded, and way with the ac off it doesn't spin and makes no noise, my question is how does this get put back together??

Go to http://www.ebay.com/ Type in your year and vehicle type. Look for air conditioner clutch. Look at the pictures I think yours broke as they are bolted on. You can try a parts store for a new clutch or a rebuilt compressor. You can also try a scrap yard.
I think the refrigerant charge will need removed to fix it. It depends on what exactly broke.