Heres a simple way to add images from the wonderful site google
1. Go to google.com and click images in the top left corner
2. Search whatever picture your looking for
3. Right click it, and click properties
4.Then you should see a URL
5. Double click the URL till its highlighted, then right click and hit "Copy"
6. Then go to your post, and click the lovely button that says IMG
7. Then paste it inbetween there and your be all done!