easy, take a screenshot using the buttong right of F12, like shredder said,
or if you have Vista you can use the Snippertool.
Then go to photobucket.com and sign up there.
upload images to photobucket.com, its pretty foolproof.
click on the txt window next to IMG code on photobucket.com, it copies automtcialy,
go on sythe, and just right lick past, or Ctrl+v