Okay, Guess it's time to explain it the full way!
Let begin with what YOU DID FIRST! Yesterday
Stage 1 -you went on a picture site
Stage 2 -open a pic thumbnail
Stage 3 -let the picture come on the site with bigger size
Stage 4 -then, you copied the link on the URL bar
Stage 5 -and posted the pic here, correct?
Now, I'll take myself as example
-I follow the link you posted
-I reach the site's pic (stage 3)
-instead of performing stage4, I right-click on the pic
-I enter its properties
-I copy the pic's original link
-And repost it in the FC
If you still don't undertand, then I'm no TEACHER!