that's my left hand (it is a photo of a reflection)
the script is easy:
[img src="fullURLofPicHere"]
you will need to have an online pic-dump from which to source your images.
I use http://www.photobucket.com
it is free, and big enough for my purposes
replace the [ and ] with < and >, respectively
Go to the photo and right click to get the URL address. Copy and paste inbetween the " ".