can you help? 2004 explorer - crack on front

I first need to say that I don't really know the first thing about cars, and am incredibly grateful for any help. Last night I put a minor crack in a front driver's side part (I've added some pictures, unfortunately even with the manual's help I'm unsure of the name of the part). There are also two cracks in the orange and white headlight part. I was wondering if any of you could give me advice to how to fix the crack in the car part, and how to replace the headlight/turn signal part (since I don't know exactly what that light cover is called, I don't know where to go to buy a replacement).

Thank you so much, for all of your help.

http://img15.imageshack.us/img15/8393/85247234.jpg

http://img229.imageshack.us/img229/5756/69203038.jpg

http://img11.imageshack.us/img11/2707/38406515.jpg

Looks like the bumper could be repainted?

If the side lense assembly is cracked they are fairly easy to replace. I'm sure you could find a used one in nice/better shape in a salvage yard.