the fiber one is the cylinder base gasket, it goes b/t the cylinder and the cases. The tho metal ones are for the head to cylinder gasket and the cylinder to rocker box cover gasket. look close, if you didn't see them upon dissasembly then they are probibly still stuck to the respective parts.
Great bike, while you've got it down why not opt for the thumper 440 kit. oh my goodness what a difference.:)