SmileyChris/easy-thumbnails — pull request #131 by smacker (2012-03-30 20:15:21+00:00)
Title: initial widget fix

Your widget has error when value is None, because it's trying to get name attribute.

Also is it okay, that widget looks not very pretty in admin by default? (django 1.4)
http://cl.ly/0v150A150V1L1V1N2g2R
Look "clear" label and checkbox, than file input align by checkbox.