If you have had trouble with Cropper and SendToFlickr, mainly because the developers have FORGOTTEN TO INCLUDE THE BINARY in the release, have no fear, for Monty is here...
Download the Cropper plugin pack 0.9834 Beta 2, to obtain the correct version of the flickr DLL
and delete
C:\Documents and Settings\Administrator\Local Settings\Application Data\Cropper.SendToFlickr Plugin
to reset the dialog box. I have just spent the last 45mins spelunking through both plugins to find out where to reset the settings.
NEXT TIME YOU DO A RELEASE, MAKE SURE YOU INCLUDE ALL FILES FOR IT!