On FSA's site they have an FSA Headset book in PDF form that will tell you *everything* you need to know:

http://www.fullspeedahead.com/fly.as...oads&taxid=255

You can figure out which model headset you have (and whether it's standard, integrated, etc), and if you have all the parts you should. Maybe you have a sealed bearing headset so you don't "see" the bearings per se? Good luck.

-pete