yes, cut and paste.
*go to your flickr account.
*left-click on the picture you want to use, so that it opens up as a larger image.
*now right click on the larger image, and click on information(or whatever it says, mine is in gaelic).
*copy the one that has .jpg?v=0 at the end of it.
*when you go to make a post, click on the little landscape icon, then paste the information you just coppied.
*now you need to delete the '?v=0' from the end of the address.
it should show up.