I am a KBR employee. Where in this website can I enroll?
You can't enroll on this website. I would recommend that you talk to the folks in Human Resources or Personnel at KBR to find out how to enroll.
It's not clear to me whether you want to enroll in the KBR plan or use Brightscope to research the KBR plan. If the later, go to the Brightscope home page http://www.brightscope.com/ and select that you want to research a 401(k) plan.