Set up a PB account.. Make sure the is 3mp or less (if take with an 8mega pixel camera yer gonna have to resize them smaller)
Now sign into yer PB account, hit the "upload" button, find the picture on yer PC, once uploaded click save or whatever, it will then ad it to your "album", click on the picture and a small box should appear below it, copy all the stuff in the "direct link" box, now open DDr, hit the "image" tab above the reply box,, paste in there.
I did this from memory but it should be close..