It's okay :D at first i didn't
get it too.But let's just put the hard stuff aside
and let's do something easier.Just go to
Photobucket.com or to Imageshack.com
Here's the tutorial for photobucket:
search 4 a image u desire
then after u clicked the image u want
u will see on the right side "Share This Photo"
and then copy the "IMG Code"
then paste it here then it's done!