Actually I didn't intend to copy the thumbnails at all - here is what happened: I used the "Copy from URL" feature and pasted the URL of my Photobucket folder. Apparently the folder the user gets to see only contains thumbnails and hyper links to the real pictures which are stored in a different folder.
I had another weird hangup too - I tried rotating the pictures I took in portrait orientation using first Graphic Converter, a shareware tool and then when this didn't work Apple Preview. With both I got pictures that looked perfect on my computer, but were back to the original orientation once I uploaded them.
