This site has pictures, some specs and good links to find honda express parts.
I just ordered a new headlight and tires from scootermania which is located in San Diego. Their e-mail is firstname.lastname@example.org I found they had very reasonable prices.
The best advice I can give you is if your headlight isn't working make sure before you put a new one in that your battery is charged. If it is not you will blow your headlight out.