Took the bumper off to install something + headlights. I'm having a hard time with two white pieces. THey're labeled LH and RH, so I'm assuming they go with the headlights; anyone know what I"m talking about? I KNEW I should've etaken pictures -_- they look like headlight supports...but i can't fit them anywhere...

uh...white, maybe 5.5 inches each...3 bolts...

 

Yeah I've been there. Well those white brackets are called stiffeners and they bolt right on the bumper not the car. There should be two bolts which hold them to the bumper. Those white brackets go on top of the bumper corners which are above headlights whenever the bumper is back on the car. Anyway they mount on the bumper and not the car.
I can send you a service manual with pics to your email if you still won't figure it out.

 

Anyway the bracket goes on the bumper and two bolts hold it to it. The third bolt goes whenever the bumper is on the car, it holds the bumper to the fender on top of the headlights.